# data[].attributes.body
I enjoy eating the ice cream a lot because it is very tasty, thank you Ms Ong for sponsoring the ice cream, I will relate it to the topics in my studies relating to thermal energy and processes it would really help me to understand the concepts more.

# data[].attributes.body
it melts after a while

# data[].attributes.body
it was tasty but it melted kind of fast due to the hot weather.

# data[].attributes.headline
9 Oct - Describe your experience of eating ice-cream

# data[].attributes.subject
9 Oct - Describe your experience of eating ice-cream

# data[].attributes.body
Temperature

As the particles are heated up, they move faster, thus the average kinetic energy of all the particles in the body increases when the temperature rises.

Pressure

As the particles are heated up, they move faster and spread out more until they are moving at high speeds in all directions, colliding with the walls of the container more frequently. The many collisions with the inner wall causes the forces to add up, and the total force exerted by the gas per unit area is the pressure, so the pressure increases, until it reaches the end of the gauge and the pressure is too much for the container to contain, thus particles burst out of the container.

# data[].attributes.headline
12 Sep- 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.subject
12 Sep- 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.body
The increase in temperature increases the energy in the kinetic store of particles causing it to move more vigorously at higher speeds

# data[].attributes.headline
12 Sept- 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.subject
12 Sept- 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.body
1) As the temperature increases, the particles move with a higher speed and greater kinetic energy and thus hit the walls of the container with a larger average force. Since it is a fixed volume, the particles will collide with the container more frequently and forcefully. Since force per unit area on the container by the collisions increase, and the area remains constant and P=F/A, pressure will increase

# data[].attributes.body
When the temperature increases, the particles increase in speed. Therefore, the average kinetic energy of all the particles in the body increases.

When the particles are heated up, they move at a faster speed, increasing the rate of the particles colliding with the walls of the container. The pressure also increases.

# data[].attributes.body
-as the particles moved faster and more vigorously, the temperature of the particles increased. The temperature of the particles rises as the average kinetic energy of the particles increases.

-as the frequency of the collisions of the particles with the walls increased, the pressure of the gas increased. The pressure is the average force exerted by the gas per unit area. When the particles collide with the walls of the container, they exert a force on the walls. Hence, when the particles collide more frequently with the walls of the container, the force exerted by the particles increases, and the pressure of the gas rises.

# data[].attributes.body
(Relate to Temperature)

As the temperature of the body increases, average kinetic energy of the particles in the body increases.

# data[].attributes.headline
12 sep - 8.2 kinetic particle model (relate to pressure)

# data[].attributes.subject
12 sep - 8.2 kinetic particle model (relate to pressure)

# data[].attributes.body
When the gas particles heated, the kinetic energy of the particles increases, causing the particles move faster. This allows the number of wall collisions to increase significantly after heating. With more energy, the particles tend to push each other further appart so the matter expands. However, since there is a fixed volume (area), the force exerted by the particles increase. P=F/A. As the force increases, the pressure exerted by the gas particles increases too. Therefore the pressure of the gas particles increases when it is heated with fixed volume (area) of the container.

# data[].attributes.headline
12 sep - 8.2 kinetic particle model (relate to temperature)

# data[].attributes.subject
12 sep - 8.2 kinetic particle model (relate to temperature)

# data[].attributes.body
as the temperature of a body increases, the kinetic energy of the particles in the body increases and the particles vibrate or move faster. temperature rises with the average kinetic energy of the particles in a body and vice versa.

# data[].attributes.body
Temperature increases with the average kinetic energy of the particles in a body and vice versa. The particles vibrate and move more quickly.

As the gas is heated, the particles collide with and exert a force on the walls of the container at a higher rate. The average force exerted by the particles per unit area increases, leading to a higher pressure. This is because P=F/A and a larger force would result in a higher pressure for the same area, which are the inner walls of the container.

# data[].attributes.body
1) as temperature rises, average kinetic energy of particles in the body increases, the particles push each other apart and the matter expands

2) as temperature increases, pressure particles exert on the inner walls of glass container increases

# data[].attributes.body
Pressure

When the gas is heated, the particles move more quickly, the rate and strength of collision with the surrounding walls increases. This is because of the gain in kinetic energy within the particles, causing them to move at a faster rate and hence, exert more force onto the walls as the speed increases, thus increasing its pressure.

Temperature

as the liquid is heated, the total kinetic energy increases as the particles moved faster. therefore the faster the particles move, the higher the temperature.

# data[].attributes.headline
12 Sep Kinetic Particle Model of Matted 

# data[].attributes.subject
12 Sep Kinetic Particle Model of Matted 

# data[].attributes.body
As the volume is kept constant while the temperature is increasing, the average kinetic energy and average speed of gas particles increase. Gas particles collide more frequently and forcefully with container walls, resulting in greater force of container walls, resulting in greater force on container walls due to these collisions. Thus, the gas exerts a greater average force per unit area of container walls. As P=F/A, gas pressure increases.

# data[].attributes.headline
12 Sep - 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.subject
12 Sep - 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.body
The particles increased in speed as the body went nearer to it and temperature rises with the average kinetic energy of the particles in a body.

# data[].attributes.headline
12 Sep - 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.subject
12 Sep - 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.body
When the heat is increased, the speed of the particles increases, which increases the pressure. This is because the average kinetic energy of the particles rises with the temperature, which causes the particles to collide with the walls of the container, increasing the pressure.

# data[].attributes.headline
12 Sep - 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.subject
12 Sep - 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.body
The pressure of a gas is the average force exerted by the gas particles per unit area. When a particle collides with the wall of the container, it exerts a force on the container. By Newton’s third law, the wall of the container exerts an equal and opposite reaction force on the particle which makes it bounce off the wall and travel in the direction of the force until it hits another wall.

When the particles are heated, energy is transferred to the kinetic stores of the particles, causing them to move faster. The particles collide into the walls more often, hence more force is being exerted on the walls. As pressure = force/area, the increase in total force leads to an increase in gas pressure.

# data[].attributes.headline
12 Sep - 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.subject
12 Sep - 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.body
When the average kinetic energy of all the particles in the body increases, the temperature increases, either when the particles are heated, compressed or when faster moving particles introduced collide into the slower moving particles.

# data[].attributes.body
The higher the temperature, the higher the kinetic energy of the particles

# data[].attributes.body
When the particles are heated up, they move faster, thus increasing the temperature. Temperature rises with the average kinetic energy of the particles in a body.

When the light gas particles are heated, the energy in the kinetic store increases, allowing them to move faster and collide with the walls of the container more frequently. Thus, the pressure increases as the force of the gas particles on the walls of the container increases but the area of the container does not change.

# data[].attributes.body
I observe that when I heat up the particles, they have more energy in their kinetic store and move more quickly. The more quickly they move, the higher the temperature.

I observe that when I heat the gas, the gas particles have more energy in their kinetic store and move more quickly. This causes them to collide with the walls more often, exerting more force on it and increasing the average force exerted by the gas particles on the walls. Pressure increases because P = F/A and the area stays constant while the force increases

# data[].attributes.headline
12 Sep - 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.subject
12 Sep - 8.2 Kinetic Particle Model (Relate to Pressure)

# data[].attributes.body
Learning Outcomes

•Explain the pressure of a gas (relate to force) in terms of the motion of its particles.

Task:

Use light particles. Fixed Volume. Once the pressure stablises, start to heat the gas. Observe how the motion of the particles (collision with the walls of the container) is affected and how the pressure changes.

Post your observation under your name. Remember to explain in terms of forces.

# data[].attributes.headline
12 Sep - 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.subject
12 Sep - 8.2 Kinetic Particle Model (Relate to Temperature)

# data[].attributes.body
Learning Outcomes

• Relate the rise in temperature of a body to the increase in average kinetic energy of all the particles in the body.

Task:

Explore the simulation and explore how the temperature of the body is related to the average kinetic energy of all the particles in the body. Post your observation under your name.

# data[].attributes.body
Watch the video and jot down three key points about Brownian Motion.

What is Brownian Motion? What do you observe? What do you deduce?

# data[].attributes.body
Vertical height of stairs = 1.635m

Average time taken to climb up stairs = 6.75s

Average weight of our members = 47.1

Work done = (47.1kg x 10N/kg)/1.635m

= 770.085J

Power developed = 770.085J/6.75s

= 114.08

= 114W (3 s.f.)

# data[].attributes.body
Vertical dist=length of each step x no. of steps

=12.7cm x 12

=152.4cm

=1.524m

Energy converted=mgh

=48.7x10x1.524

=742.188J

Time taken=3.9s

Power=E/t

=742.188/3.9

=190.304

=190W (2sf)

# data[].attributes.body
measurements:

height=(12.6/100) x 12

=1.512m

time taken=6.26s

work done= (10)(40) x 1.512

=604.8 J

power= work done/time

=604.8/6.26

=96.6 W (3sf)

# data[].attributes.body
work done = dist x force

force = 52 x 10

= 520

dist = 3.5m

time = 6.4s

power = work done/time

(520 x 3.5)/6.4 = 284W (3sf)

# data[].attributes.body
Work done/time

= [10N/kg x 48kg x (0.127m x 12)] / 6.35s

= 115W

# data[].attributes.body
Work done= f x d = 46x10x (13.5/100) x 12=745.2

Distance used was the height of stairs= (13.5/100) x 12

Power= workddone divided by time in seconds

= 745.2/7.16 =104watts

# data[].attributes.body
P=E/t

E=GPE gain

GPE= mgh

Vertical height= 12.3×12/100=1.476

m=39

t= 8.96

GPE/t= 1.476(10)(39)÷8.69= 66.24W

# data[].attributes.body
Work done = distance x force

W= mg = 10 x 53.5= 535

Distance (height) = 13.5cm = 0.135m

Time taken = 7.6 seconds

(0.135 x 12 x 535 )/7.6 = 114W (3sf)

# data[].attributes.body
Measurements:

Time taken=5.61 seconds

Distance moved in direction of force=3.7m

Weight/Force=480N

Work done=Fxd

=480x3.7

=1776 J

Power = Work done / time

= 1776 / 5.61

=317W (3sf)

# data[].attributes.body
Measurements:

Time taken - 6.4s

Parallel Distance- 3.81m

Work done= force x parallel distance

=430 x 3.81

= 1640J

Power = work done/ time

= 1640/6.4

=256W(3sf)

# data[].attributes.headline
Group Task: Propose the best energy solution for Singapore

# data[].attributes.subject
Group Task: Propose the best energy solution for Singapore

# data[].attributes.body
Learning Objectives: able to discuss the use of non-renewable energy resources such as fossil fuel and nuclear fuel, and renewable energy resources such as biofuel, wind, tides, hydropower, geothermal reservoirs and solar to generate electricity in terms of efficiency of energy transfer, cost, reliability and their environmental impact.

20 minutes

Formation of Groups: Divide students into groups of 4-5.

Task Assignment: Each group will be assigned one type of energy resource. Please research and discuss the assigned resource in terms of efficiency, cost, reliability, and environmental impact.

Proposal Development: Each group will propose the best energy solution for Singapore based on their discussion and provide reasons to support their choice (Use relevant reports/ articles).

Presentation Preparation: Groups will prepare a short presentation (1 minute) to share their proposal with the class. Format: Slides, Infographic etc

Suggested References:

1. https://www.edb.gov.sg/en/business-insights/insights/what-could-singapores-energy-mix-look-like-in-2035.html

2. https://www.greenplan.gov.sg/

3. https://www.ema.gov.sg/

4. Channelnewsasia

# data[].attributes.attachment_link.description
Learn how Singapore will transform into a global city of sustainability with the Singapore Green Plan 2030.

# data[].attributes.headline
1 AUG - Group of Two/Three - Calculating Power

# data[].attributes.subject
1 AUG - Group of Two/Three - Calculating Power

# data[].attributes.body
Task:

Calculate the power developed in climbing a flight of stairs.

Time: 10 min

Post your solution clearly

Title: Names of group members

Measurement taken

formula used and appropriate units

# data[].attributes.body
Q1) You correctly identified the perpendicular distance and used the correct conversion for mass. However, the final answer for the moment is not entirely correct as it does not have the correct significant figures. Make sure to include the correct units and significant figures in your final answer.

Q2) You have provided a scientifically accurate and clear explanation of one of the key points, which is a good start. However, to fully meet the criteria, you need to include at least one more key point from the answer scheme. Make sure to mention the overshooting due to inertia and the subsequent anticlockwise moment, as well as the oscillation until the center of gravity is directly below pivot A.

# data[].attributes.headline
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.subject
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.body
Feedback:

Your response includes some relevant concepts such as the clockwise moment and inertia. However, it only partially addresses the key points required. It does not mention the overshooting of the position where the center of gravity is directly below pivot A, the anticlockwise restoring moment, and the eventual oscillation until the center of gravity is directly below pivot A. To improve, ensure to include these aspects in your explanation.

This feedback is quite accurate as my explanation of how the inertia of the sheet affected its movement was inaccurate.

# data[].attributes.headline
29 July (check in on turning effects of forces)

# data[].attributes.subject
29 July (check in on turning effects of forces)

# data[].attributes.body
The sheet will rotate clockwise to the left as the centre of gravity is shifted to the right, so the weight will produce a clockwise moment about the pivot that swings the sheet clockwise. The sheet will then swing to the right due to inertia such that the centre of gravity is on the left of the pivot, so the weight will provide an anti clockwise moment and the sheet will swing anti clockwise. The sheet will oscillate about the equilibrium psotitiin and eventually return to its initial position, where the line of action of the weight passes through the pivot.

-I can add in the part about the sheet overshooting its position and the perpendicular distance being zero at the end.

SLS feedback:

Your response includes two of the four key points: the clockwise moment due to the weight and the oscillation about the equilibrium position. Your explanation is scientifically accurate, clear, and coherent. To improve, you should include the point about the sheet overshooting the position where the center of gravity is directly below the pivot due to inertia, and the final position being the center of gravity directly below the pivot.

# data[].attributes.headline
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.subject
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.body
Feedback

a: You correctly identified the perpendicular distance and the final answer with the correct units. However, you missed the conversion of mass from grams to kilograms. Ensure to include all necessary conversion steps in your calculations to avoid errors.

b: You have provided two of the four key points required: the clockwise moment causing rotation and the overshooting due to inertia. Your response is scientifically accurate and coherent, but it lacks the details about the restoring moment being about pivot A and the final position of the center of gravity being directly below pivot A. Focus on these missing details to improve your explanation.

# data[].attributes.body
1. Your response did not include the correct perpendicular distance or the correct conversion for mass. The correct perpendicular distance from the pivot A to the line of action of the force (weight) should be AX, which is 0.30 m. Additionally, the mass of the sheet should be converted from grams to kilograms before calculating the weight. Please review these points and try again.

This AI sucks. I did include everything correctly except for converting grams to kilograms >:(

2. Your response shows a good understanding of the concept of oscillatory motion and inertia. However, to fully meet the criteria, you need to mention the direction of the moments (clockwise and anticlockwise) and the final position where the center of gravity is directly below pivot A. Keep up the good work and try to include these details in your future responses.

I left out the words clockwise and anti clockwise. Instead, i used “left” and ”right”. Ill remember next time

# data[].attributes.body
did not clearly state that the sheet will overshoot the position where the center of gravity is directly below the pivot due to inertia. i also did not mention the anticlockwise restoring moment provided by the weight.

# data[].attributes.body
1a) You have shown a clear understanding of the problem by correctly identifying the perpendicular distance and converting the mass. Your final answer is correct and includes the appropriate units of Nm. Great job!

1b) Your response partially addresses the final state of the object but misses key points about the process leading to this state. To improve, you should mention the initial clockwise moment caused by the weight of the metal sheet, the overshooting due to inertia, and the subsequent anticlockwise moment. This would make your explanation more scientifically accurate and coherent.

Suggested answer: 4. Therefore, the sheet will oscillate about A until eventually the centre of gravity is directly below pivot A, the perpendicular distance between line of action of weight and pivot A is zero, there is no resultant moment due to the weight.

# data[].attributes.body
Q1) 250g = 0.25 kg

W=mg

W= 0.25x10= 2.5N

M= dxF

M= 0.30x2.5 =0.75Nm (Ans)

You have demonstrated a clear understanding of the problem by correctly identifying the perpendicular distance and converting the mass. Your final answer is correct and includes the appropriate units of Nm. Great job!

Q2) The sheet is in equilibrium. When the center of gravity , point G is directly below the pivot point, A, the weight does not provide any moment about the pivot to cause it to move. This is because M=dxF and the perpendicular distance between the pivot and the center of gravity is zero,

You mentioned the equilibrium condition accurately, but you did not cover the process of how the sheet reaches that state. To fully answer the question, you need to explain the moments and oscillations that occur when the sheet is released.

# data[].attributes.body
1) Criterion Feedback

You have correctly identified the perpendicular distance and converted the mass, but you did not show the detailed steps for the conversion. Ensure to include all steps in your working for full clarity.

2) Your response mentions that the sheet will oscillate and come to rest, but it lacks the necessary scientific details and clarity. To improve, you should include all four key points: the weight of the metal sheet providing a clockwise moment about pivot A, the sheet overshooting the position due to inertia, the weight providing an anticlockwise moment, and the sheet oscillating until the center of gravity is directly below pivot A.

# data[].attributes.body
1) You correctly identified the formula for weight as m x g, but there was an error in your conversion of mass. The mass should be converted from grams to kilograms by dividing by 1000, not multiplying by 10. Additionally, the perpendicular distance used in the moment calculation should be 0.30 m, not 0.50 m. Keep practicing, and you'll get the hang of it!

2) You mentioned the center of gravity and moments, but your response only partially addresses the required points. To improve, you should include all four key points: the clockwise moment causing rotation, the overshooting due to inertia, the anticlockwise moment, and the oscillation until the center of gravity is directly below the pivot. Ensure your answer is scientifically accurate, clear, and coherent.

# data[].attributes.body
1. You have shown a good understanding of the problem by correctly identifying the perpendicular distance and using the correct formula. However, you missed converting the mass from grams to kilograms. Make sure to include all necessary conversions in your calculations to avoid errors. Keep up the good work and pay attention to the details!

2. Your response shows a good understanding of the concepts involved, but it is missing some key details. You correctly mentioned the oscillation and the role of inertia, as well as the anti-clockwise moment restoring the sheet to its original position. However, you did not clearly state the initial clockwise moment caused by the weight of the sheet, and the final position where the center of gravity is directly below pivot A. To improve, ensure that you include all the key points and details in your explanation.

# data[].attributes.body
a. You correctly identified the perpendicular distance and converted the mass from grams to kilograms. Your final answer is also correct with the appropriate significant figures and units. Well done!

b. You have provided two of the four key points: the final position of the sheet and the initial clockwise moment. However, your response lacks the details about the sheet overshooting due to inertia and the subsequent anticlockwise moment. Make sure to include all these points for a complete answer.

# data[].attributes.body
Q1- You have demonstrated a clear understanding of the problem by correctly identifying the perpendicular distance and converting the mass. Your final answer is correct and includes the appropriate units of Nm. Well done!

Q2- You correctly identified that the weight of the metal sheet creates a clockwise moment about the pivot. However, to fully meet the criteria, you needed to mention the sheet's rotation, overshooting due to inertia, the anticlockwise moment, and the eventual stabilization. Your response was clear and scientifically accurate but lacked the complete explanation required.

# data[].attributes.body
SLS feedback:

Q1) You correctly identified the perpendicular distance and used the correct formula to calculate the moment. However, you missed converting the mass from grams to kilograms, which is crucial for accurate calculations. Make sure to check your units next time.

Q2)Your response included two of the four key points: the restoring moment causing clockwise rotation and the oscillation due to inertia. However, it missed the overshooting of the center of gravity and the subsequent anticlockwise restoring moment. Additionally, the terminology used was not entirely accurate. Aim to cover all key points and use precise terms in your explanations.

# data[].attributes.body
Feedback given:

You have provided a clear and scientifically accurate explanation of the clockwise moment caused by the weight of the sheet. However, you only covered one of the four key points. To improve, make sure to include all relevant points such as the overshoot due to inertia, the anticlockwise moment, and the eventual oscillation until the centre of gravity is directly below pivot A.

# data[].attributes.body
a)You have correctly identified the perpendicular distance and performed the conversion for mass accurately. However, you did not complete the final calculation for the moment and did not include the correct units (Nm). Ensure to follow through all steps and include units in your final answer.

b)Your response includes some of the key points, such as the weight providing a clockwise moment and the oscillation of the sheet. However, it lacks a clear mention of the sheet overshooting the position due to inertia and the restoring moment in the opposite direction. To improve, ensure that all critical points are covered and described accurately.

# data[].attributes.headline
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.subject
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.body
I could have been more specific with my points and added more points to make it more clear (?) :D

# data[].attributes.body
Feedback: You provided two of the four key points: the clockwise moment due to weight and the overshooting due to inertia. Your response was scientifically accurate, clear, and coherent. To improve, ensure to include all four key points and use the term 'restoring moment' to describe the moments created by the weight.

# data[].attributes.body
Your response shows a good understanding of the concept, as you mentioned the oscillation and eventual return to equilibrium. However, you only included two out of the four key points required. To improve, ensure you cover all the necessary points and make your explanation clear and coherent.

I think i kinda get where i’m wrong cause i never write about the overshoot due to inertia and the anticlockwise motion i only say “Due to inertia” so i also think i’m wrong

I left out the resultant moment is 0 due to weight

# data[].attributes.headline
29 July- quick check on turning effect of forces (refer to quiz on Sls)

# data[].attributes.subject
29 July- quick check on turning effect of forces (refer to quiz on Sls)

# data[].attributes.body
Q1-You have provided a scientifically accurate and coherent explanation of the initial clockwise moment caused by the weight of the sheet. However, to fully meet the criteria, you needed to include the subsequent points about inertia, overshooting, and oscillation. Keep practicing to ensure you cover all aspects of the explanation.

# data[].attributes.body
a) You have correctly identified the perpendicular distance and used it in your calculation. However, you missed converting the mass from grams to kilograms, which is an important step. Make sure to include all necessary conversions in your future calculations.

b) You mentioned that the weight of the metal sheet produces a moment about pivot A causing the sheet to rotate clockwise, which is one of the points. However, to fully meet the criteria, you need to include all four points: the overshooting due to inertia, the anticlockwise moment, and the oscillation until the center of gravity is directly below pivot A.

# data[].attributes.body
need to include all four key points: the restoring moment provided by the weight, the role of inertia, and the oscillation about the pivot until equilibrium is reached

# data[].attributes.headline
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.subject
29 July - Quick Check on Turning Effect of Forces (refer to quiz on SLS)

# data[].attributes.body
1. You may download this page to do your working but submit your answer on SLS to get the marks and feedback.

2. Post under your own name

use this same title

feedback by SLS/ what are the points you missed out for both parts.

# data[].attributes.body
Hello Ashleigh, do start with what you know well.

Ms Ong

# data[].attributes.body
1. the formula P=F/A

2. pressure of liquids, barometer and manometer

3. revise the textbook and notes/ search online

# data[].attributes.body
I think I know how to use the formulas for pressure, p=F/A and P=hpg.

I can have a better understanding of how to use the formulas with other formulas for moments, forces, etc.

I will try to revise my worksheets.

# data[].attributes.body
1 concept I know well is pressure=force/area

1 concept I don’t know is when to use what formula

I will practice more practices on pressure

# data[].attributes.body
1) P=F/A, P=hdg

2) hydraulic systems

3) practise doing questions

# data[].attributes.body
i understand the concept of P = hpg

i need to revise more on manometers

i will read the notes and do practice questions

# data[].attributes.body
1. the formulas P = F / A and P = hpg

2. barometer and manometer

3. do more practice questions with that concept

# data[].attributes.body
1 thing I did well was remembering p=f/a.

1 thing I need to work on is the part on manometers and barometers + p=hpg.

I will work on it by practising the 10 year series until I grasp the concept better:)

# data[].attributes.body
1 concept I know well:

Pressure: Force/Area

1 concept I need to revise:

Measuring pressure in a liquid column

1 specific action I will take to revise this topic:

Do pressure questions from the physics 10 year series book

# data[].attributes.body
1 concept I know well

-finding the pressure in water

1 concept I need to revise

-manomoters and barometers

1 specific action I will take to revise this topic 💪

-revise the notes and try different questions

# data[].attributes.body
1 concept I know well

I understand how to find pressure using the 2 formulas P = F/A and P = hρg

1 concept I need to revise

Barometer and Manometer

1 specific action I will take to revise this topic

I will look through my notes and attempt more practices

# data[].attributes.body
I know how to calculate pressure from a hydraulic diagram well

I need to revise on finding the pressure and density from the manometer and barometer diagram

Spend some time at home revising

# data[].attributes.body
I know the basic formula of the pressure well, but I need to watch out for any adjustments needed to add to the formula…(the kahoot quiz made me realise that…😞)

# data[].attributes.body
What pressure is and how to calculate it

Hydraulic presses and how the forces get multiplied in it

I will do more practice questions

# data[].attributes.body
1 concept I know well (P=F/A)

1 concept I need to revise (hpg)

1 specific action I will take to revise this topic (read notes)

# data[].attributes.body
1 concept i know well is P= F/A

1 concept i need to revise is barometer and manometer

1 specific action i can take is to do the TYS and practice the skills.

# data[].attributes.body
1. The concept I know well is that fluids at the same height have the same pressure

2. A concept that I need to revise is measuring pressure at different points

3. I will do more quizzes online and do more exercises in this topic to strengthen my knowledge on it.

# data[].attributes.body
1. formula of pressure of liquids in enclosed containers

2. manometer

3. do more practice questions

# data[].attributes.body
1. the formulas P=F/A and P=hpg

2. how barometers and nano meters work, and how to calculate respective pressures using them

3. Read through the notes/slides while working on the pressure worksheet

# data[].attributes.body
1 i know the concept of finding pressure in water

2 pressure of gases

3 keep practising and practising

# data[].attributes.body
1. one concept i know well is the P=hdg

2. one concept i need to revise is the barometer and the u tube concepts.

3. one specific action i will take to revise is doing TYS

# data[].attributes.body
1. formula for pressure of a liquid in an enclosed container (hpg)

2. Barometer and manometer

3. Read tb

# data[].attributes.body
1 Good at P=F/a questions

2 Need to revise measuring pressure in liquid

3 will do more practice

# data[].attributes.body
I know that all liquids at the same level have same

pressure

I need to revise more on pressure

I will start doing my the year series and submitting my practicals

# data[].attributes.body
I know P=hDg

I need to revise the pressure hydraulic system

I will my TYS when I go home

# data[].attributes.body
1 concept i know well: P=F/A

1 concept I need to revise: barometer

1 specific action I will take to revise this topic: reread notes and ws, make sure i know my mistake and understand. clarify if there’s any doubts

# data[].attributes.body
1 concept I know well :)

Pressure in day-to-day life

1 concept I need to revise

How to measure pressure

1 specific action I will take to revise this topic 💪

Memorise the formulae and familiarise myself to manometers

# data[].attributes.body
After the Kahoot Quiz, please post with the same heading "15 July - Exit Ticket for Pressure" and respond to the following questions:

1 concept I know well :)

1 concept I need to revise

1 specific action I will take to revise this topic 💪

Updates! Here's the questions and explanations

# data[].attributes.headline
3 July Pressure - Hydraulic Press has Multiplier Effect!

# data[].attributes.subject
3 July Pressure - Hydraulic Press has Multiplier Effect!

# data[].attributes.body
•A hydraulic press has a multiplier effect (proportional increase) as F₂ is a multiple of F₁.

•If a pressure is applied to an enclosed liquid, the pressure is transmitted to all other parts of the liquid undiminished – Pascal’s Principle or Pascal’s Law.

# data[].attributes.body
The centre of gravity is right above the point of contact(pivot) thus the can is at equilibrium. The liquid inside makes the centre of gravity lower, giving it better balance.

# data[].attributes.body
It melts the ice on the surface through friction between the ice and the blades, lubricating the blades, making it easier to ice skate.

# data[].attributes.body
P=W/a

Weight=8.0kg x 10N/kg =80N

Surface area=0.1mx0.2m=0.02m2

Pressure=80/0.02=4000Pa

# data[].attributes.body
minimum pressure : largest area

force = 8.0 x 10 = 80N

area = 0.2 x 0.1 = 0.02m^2

pressure = 80N/0.02m^2 = 4000Pa

# data[].attributes.body
P=F/A

10cm=0.10m

2cm=0.02m

Area of surface area=0.10x0.02

=0.002m^2

Pressure=10/0.002

=5000Pa (X)

CORRECTIONS

Force

=8kgx10N/kg

80N

Area

=0.2x0.1

=0.02m^2

Pressure

=80N/0.02m^2

=4000Pa

# data[].attributes.body
0.8kg x 10N= 80N

10/100=0.1m 2/100=0.2m

0.1 x 0.2=0.02msquared

Pa=80/0.02=4000pa

# data[].attributes.body
Minimum pressure —> greatest contact area

P = F/A

A (greatest area) = (20 / 100)(10/100)

= 0.02m^2

P= (8.0 x 10) / 0.02

= 4000 Pa

# data[].attributes.body
P = F/A

A = 10 x 2 = 20cm^2

= 0.02m^2

F = 8.0 kg x 10 N/kg

= 80 N

P = 80 N / 0.002 m^2

= 4000 Pa

# data[].attributes.body
8x10 N / (200/10000) = 80/0.02= 4000