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Friction is how objects move. It is a force that is applied to move objects/things; Friction opposes motion.

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Muhammad Bilal 4/C
It is push or pull

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I understand that friction is a force that opposes motion. It can change the shape of the moving object. It can also stop a moving object. If there will be no friction, life would be difficult. Everything wouldn't stop or slow down. Friction enables us to hold on things without slipping.

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By: Abrish imran
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.

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1. Force is push and pull.
2. Yes,Friction is a force.
3. Yes,Friction effects motion.
4. Friction opposes motion.

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1. Force is a push or pull acting on an object.
2. Friction is a force.
3. Friction is a force that effects motion.
4. Friction opposes motion. More friction = less motion.

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Force is a push or a pull or it can stop and slow down a moving object. Force can change the shape of an object. Position means that which place you are sitting or standing. Motion means that one place to another. Non-Fiction is that when we have no friction in our shoes so we can slip easily to the wet or slippy floor. And friction should be every where but some time it's not useful like if you are pushing a box. When you give a push to it it's just stop so it's mean it is a friction. Like if a car wheel don't have friction so it will never stop or slow down!
That's why friction is needed.

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I understand that friction is a force that opposes motion. It can change the shape of the moving object. It can also stop a moving object. If there will be no friction, life would be difficult. Everything wouldn't stop or slow down. Friction enables us to hold on things without slipping.

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A force is a push or pull.  The force that opposes the motion of the object is called the frictional force. Yes I adree with the top statement. Friction or frictional force that opposes motion when two surfaces are in contact. friction never oposes motion friction only tends to prevent sliding between two surfaces. but friction can support motion or oppose motion acoording to prevent sliding.

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Friction helps us to do many things in our daily
live.without friction ,life would be very different or even difficult too.Force can change the shape of objects make objects move ,change the direction, speedup, slow down stop a moving object.Friction enables us to hold on to things without slipping.

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IV-B
Ans 1. A force is a push or a pull.
Ans 2. Friction is a force between two surfaces that are sliding, or trying to slide, across each other. For example, when you try to push a book along the floor, friction makes this difficult. Friction always works in the direction opposite to the direction in which the object is moving, or trying to move.
Ans 3. Yes I agree with the statement at the top.
Ans 4. Friction is a force that occurs when two surfaces slide past one another. The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object.
Ans 5. Friction opposes motion.

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A. Force is a pull or push.
B. Yes friction is force.
C. Yes, I agree with this statement.
D. It opposes motion.

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HASEEB AHMED 4-A                     Force is a push or a pull. Friction is a force. Yes i agree with the statement at the top. Friction works against the motion when two surfaces are in contact. It opposes motion.                             

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HASEEB AHMED 4-A                     Force is a push or a pull. Friction is a force. Yes i agree with the statement at the top. Friction works against the motion when two surfaces are in contact. It opposes motion.                             

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Friction acts against motion, more the weight of the object and rougher the surface more will be the friction and less the weight and smoother the surface less will be the friction.

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Due to less friction there is more motion in a moving object.

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4a
friction is a force that opposes motion when two surfaces are in contact. it stops , speed up slows down and changes the direction of a object .
friction is use full in many things like sitting on chair , walking striking a match box and many other things. If there will not be friction our life would be different or even difficult. It helps us to grip the things hold the pencil and walk with out slipping.

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A.force is a push or pull.
B.Yes, friction is a force.
C.Yes, I agree.
D.Yes, it creates resistance along the motion
E.It opposes motion

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A. Force is a pull or push.
B. Yes friction is a force.
C. Yes i agree.
D.It oppose motion.

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A force is a push or a pull. I agree that friction is a force. Friction opposes motion. Friction opposes motion so the more the friction, the less the motion.

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Q1. Force is a push or a pull.
Q2. Yes, friction is a force.
Q3. Yes, I agree.
Q4. Friction is a force that opposes motion.
Q5. It opposes motion.

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Friction is a force that opposes motion when 2 surfaces are in contact. Friction is useful in daily life. It enables us to hold on to things without slipping.

A force is a push or a pull. Forces can change the shapes of objects,make them move, change the direction, speed up, slow down or stop a moving objec

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Friction is a force that opposes motion.Friction is usually greater when an object moves on a rough surface than on a smooth surface. This is why the box does not move as far when flicked on a grass or a rough surface.
- Pulling a box full of things over a rough surface is hard.
- Pulling a box containing a fewer things over a smooth surface is easy.

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Q3 when car is moving fast we apply force on a break to stop it the car.

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Q3

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Q.1 I use computer and applie froce on mouse.
Q.2 The car moves slowly on the carpet because the carpet has more friction and the floor has less friction.
M.Khizar saqib Rasool

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Q.1

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From the video I learned that if the parachute is  bigger it will fly long time and if the parachute is smaller it will fly more fast than the bigger one. simply we can say more surface more friction lesser surface lesser friction.
The car slows down and stops on the rough surface like carpet because of more friction. The car moves more on the smooth surface like floor because of lesser friction .

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If we are going rock climing we should were shoes with paterns or else we would fall because with paterns shoes we can have a grip

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20.4.2020
Q1. Share any example where you apply force to move something. How can you relate it with work?

Ans. As we know force is push or pull we need force to move something. We need force to do the work for example I tried to move the table but I couldn't because of heavier and more friction. When I applied the force to move the table I succeeded. So force is required to do any work.

Q2. Share any example where you applied force to stop moving something, how can you relate it with work?

Ans. We need force to stop moving some thing. For example when we drive the car we need to stop it at our destination so we use force on the break liver to stop the car.

Q3. Why a toy car slows down on a carpet?

Ans. A toy car slows down on a carpet because of rough surface area and more friction. There is more friction on rough surface.

Q4. Why does it go farther in a smooth floor?

Ans. It go farther because of smooth surface area and less friction.

There is less friction on smooth surface.

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By Ashveneh Khan
Q1. Share any example where you applied force to move something.
How can you relate it with work?
Ans: My mom told me to take a side table to our room, I pushed it to my room in 5 minutes but the side table was very heavy and hard to push.
Q2. Share any example where you applied force to stop something
moving. How can you relate it with work?
Ans: My brother and I were playing cricket, I stopped the ball with my
hand but the ball was so fast that my hand went backwards when I
caught it.
Q3. Why a toy car slows down on a carpet?
Ans: It slows down on a carpet because the carpet is a rough surface and
the toy car’s tyre treads must’ve helped to stop it, also there is more friction on the carpet.
Q4. Why does it go farther on a smooth floor?
Ans: It goes farther on the floor because the floor has a smooth surface and there is less friction on the floor.

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I watched the video about ``How does a Parachute work?
I learnet that Parachute is a device used to slow down the object, which is falling down towards the ground, There are two forces, Gravity and Air resistence. When parachute open Air resistance is increase now, the air resistence is more than gravity. Which make slow down falling object the parachute and the person land safely on the ground.

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I watched the video about air resistance and I have learned about the experiment of air resistance that 1 man dropped 2 papers at a time. First he made the first paper a ball and he leaved the second one. The ball paper one dropped first because it had a little bit of air and another paper had air so than it fall down slowly.

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Friction between moving parts can be reduced by using lubricants, such as oil and wax.

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Khubaib khan 4.A
Dear teacher I have already done all the question about friction which shows on videos on padlet wall dated 20.3.20 and 21.3.20

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I have learnt there are two types of forces : gravity and friction.
Friction is the force that slows down moving things . For example a moving toy car will slow down quickly when pushed on a carpet and when it is pushed on the floor it will go far.
Gravity is the force that brings you down .For example if we throw a ball into the air it will come down.

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Force is friction and gravity. Force is used for doing work like pushing or pulling a chair. Force is also pushing and pulling.

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Q1. Share any example where you apply force to move something. How can you relate it with work?

Ans. As we know force is push or pull we need force to move something. We need force to do the work for example I tried to move the table but I could’nt because of havier and more friction. When I applied the force to move the table I succeeded. So force is required to do any work.

Q2. Share any example where you applied force to stop moving something, how can you relate it with work?

Ans. We need force to stop moving some thing. For examlple when we drive the car we need to stop it at our destination so we use force on the break liver to stop the car.

Q3.Why a toy car slows down on a carpet?

Ans. A toy car slows down on a carpet because of rough surface area and more friction. There is more friction on rough surface.

Q4. Why does it go farther in a smooth floor?

Ans. It go farther because of smooth surface area and less friction.

There is less friction on smooth surface.

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Javeria 4b
If there will be more weight the friction will be more and if weight is less then the friction will be also less

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The car moves fast at smooth surface because it contains less friction and the car moves less at carpet because it contains more friction .Javeria from class 4-B
the end thank you

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Zainab Zia Forces and motion        I learned that  a force is a push or pull. work is done when the force is applied on any object.when we move an object  on a rough surface more friction is produced.there is very less friction on a smooth surface.

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Zainab Zia Forces and motion        I learned that  a force is a push or pull. work is done when the force is applied on any object.when we move an object  on a rough surface more friction is produced.there is very less friction on a smooth surface.

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ans1;for example : we pull a chair to take chair out and push it to take it out.ANS2; i was play with my brother with the ball ang then he throw ball i stop it with my leg. ANS 3 A: toy car slow down on carpet because there is friction.ans 3b It goes further on the smoth place because there is no friction.

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ans1;for example : we pull a chair to take chair out and push it to take it out.ANS2; i was play with my brother with the ball ang then he throw ball i stop it with my leg. ANS 3 A: toy car slow down on carpet because there is friction.ans 3b It goes further on the smoth place because there is no friction.

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FIZZA RAZA 4/D

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Ayaan kanwar bhatt 4a 16-4-20     (Force and work)

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Ayaan kanwar bhatt 4a 16-4-20     (Force and work)

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I learned that forces are a push or pull.We can stop and move a object.There are two types of forces that are friction and gravity.
Examples for gravity:
When you throw a apple towards the sky It falls down.
Examples for friction:
When you erase with eraser on a carpet ,there is more friction.
Work:The ability to do any work is energy.
Energy:Energy is the ability to do any work is energy.There are many forms of energy that are:
Heat energy.
Electric energy.
Light energy.

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Friction is the force that acts in the opposite direction of any moving object. Friction can be very useful and we can do lots of things with it but it can also cause damage as well. Friction helps our car slow down when it is going to fast and it can also help us to walk, write and even hold the pencil. Some examples of friction are air ,water and static friction.
Hasan Ali
IV-D
17 Friday 2020

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Muhammad Bilal 4/C 17-4-2020

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Khubaib Khan 4a        16-4-20      (Force and work)    

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Khubaib Khan 4a        16-4-20      (Force and work)    

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I learnt that force is a push or pull.We can stop a moving object with force.It can the shape and the direction. There are 2 types of forces. Friction and Gravity.
Friction e.g:
Push the car on smooth floor has less friction.
Gravity e.g:
Earth has the power to attract everything towards it's center.
Work:
Ability to do some work is known as energy.
Energy is the ability to do work.
There are the 3 types of energy.
Heat energy
Light energy
Electric energy

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Usman Hassan
IV-C
My experiment:
1. I move a toy car in carpet,it stops to soon in middle of carpet.Then I move it in smooth surface,it went far.
2. I flip a coin on the carpet,and it fall without rolling.Then I flip it in smooth surface,and the coin roll.
3. I throw the ball high in air and it fall down quickly.
Thank you
The End

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Today what I learnt is that force is a push or a pull. We need force to move an object, change it's shape, stop it and push or pull anything. Friction goes against the movement of an object and tries to stop or slow it down. Earth has the power to attract everything to itself and that is called gravity. With the help of gravity everything comes down on Earth and doesn't float. Energy is the ability to do work. There are three types of energies which are: Electrical energy, Heat energy and Light energy.

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Bilal lodhi
4 C
My experiment is when I ride a bike with a streamlined shape i reduce air resistance and it take less friction  so  i ride a bike faster .

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Bilal lodhi
4 C
FORCE AND MOTION .
A force is a push or a pull.
When force is used to move things work is done .
Energy is the ability to do work.
Types of energy .
1. Heat energy.
2. Light energy.
3. Electric energy .
Types of force .
1. Friction .
2. Gravity.
Energy : Ability to do some work is known as Energy .
We need energy to push or a pull.
Types of Energy .
1. Heat energy .
2. Light energy .
3. Electric energy .

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A force is a push or a pull. Water resistance is the friction between an object and the surrounding water as the object moves through the water.
Water resistance can be reduced by having streamlined shapes.
By Syeda Kazima Zehra

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I observed that it was a match of Karachi vs Quetta and Irfan Jr was the baller and when he was balling so we had friction and when he released the ball it had less friction

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By abdullah

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If  we flip a coin on a Smooth surface and on a rough surface  in which  surface  it will flip more?
On the smooth surface because there is less friction and on a rough surface it will flip less because there
Less friction.

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Friction  is a force that opposes motion

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We need friction to stop our self because if an lorry wheel have no friction so how it will stop or slowdown in traffic or it will attack any of the building or car. And be punished by Police. Or if your shoes have no friction so you will slipped down and fall down. If your joggers are thorn or old and you are trying to climb on the mountain so you can fall from mountain easily.

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We need friction to stop our self because if an lorry wheel have no friction so how it will stop or slowdown in traffic or it will attack any of the building or car. And be punished by Police. Or if your shoes have no friction so you will slipped down and fall down. If your joggers are thorn or old and you are trying to climb on the mountain so you can fall from mountain easily.

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Fariyha Syed

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slide a coin in a marble tile and then in a concrete pavement?
1. What difference do you notice?
Ans: I notice that a coin in a smooth surface move fast and a coin in a rough surface move slow.
2. Why does this happen?
Ans: It happen because of the friction.
3. Do your bike have trades?
Ans: Yes.
4. Take a ball and move it in a smooth surface and then in a rough surface and then check the speed of the ball on different surfaces.
Ans: I check that a ball move very fast in a smooth surface and i also check that a ball move very slow in a rough surface.

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My experiment on flipping a coin on a rough and smooth surface

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Q1:Do you observe friction in your daily life?
Ans:Yes!I do observe friction in my daily life

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water resistance is a friction that opposes motion if an object is in water.Water resistance is the friction between an object and the surrounding water as the object moves through the water also water resistance can be reduced by having a streamlined shape

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Air resistance is a friction that opposes gravity and air resistance can be reduced by a streamlined shape.Air resistance can be increased by increasing the surface area in contact with the air

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By: Ashveneh Khan IV-B
Water resistance is the friction between an object and the surrounding water as the object moves through the water.also water resistance can be reduced by having streamlined shapes.

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Air resistance can be reduced by having streamlined shape .
Air resistance can be increased by increasing the surface area in contact with the air

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air resistanc e
air resistance is the friction between an object and the surrounding air as the object moves through the
air.
the larger the surface area, the greater will be the air resistance
air resistance can be reduced by having steamlined shape .

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If you drop a paper ball and a sheet of paper, which one do you think will land first? Well the paper ball will land first. The paper ball landed first because of smaller surface area, more gravity and less air resistance. The sheet of paper did not land first because of larger surface area, more air resistance than gravity.

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Force is the scientific reason behind a pull or a push. It is the weight exerted from a person or thing that moves an object. The moving of that object is called Motion. Friction is a force that opposes motion. It stops the object from moving when in large quantities.

If a person wanted to push a box to the other side of the carpeted room, he would push the box, exerting a pressure called force, the moving of the box would be called motion, and the carpet stopping the box from moving would be a process called friction.

Similarly, if a person attached a parachute to a toy figurine, the time of the fall of the parachute would be predicted by the weight of the toy figurine, surface area of the parachute, and the air resistance. For example, if a parachute with a surface area of 20×20 had a toy figurine attached to it, it would take approximately 8/10/12 seconds for it to fall, depending on the weight of the toy. The air would try to keep the parachute from falling, which would result in a process called air resistance, which would intercept it, but not keep it above-ground forever. The parachute would eventually fall, as gravity is stronger than any natural push, such as friction and air resistance.

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Thankyou so much Ahad for sharing your assigned interactive activities.

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Thankyou so much Ahad for sharing your assigned interactive activities.

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water resistance

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water resistance

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flicking coin on a rough surface

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Thanks for sharing.

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Motion is when an object moves from one place to another, while force is what causes an object to move or to stop moving. Examples of force include the kick that causes a ball to move across the field and the gravity that slows and eventually stops that ball from moving.
Abrish imran

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By Ashveneh Khan
I learnt that the larger the surface area of an object moving through the air,the greater the air resistance has to go against and air resistance can be reduced by having streamlined shapes and can be increased by increasing the surface area in contact with the air.

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What is friction?
Friction is a force that opposes motion when two surfaces in contact. it slow down and stop vehicles,enable us to walk,sit and hold on to things with out slipping.

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We  see  friction in our friction  in  our daily life.Friction opposes motion.

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 Can you explain why falling down of small and big parachutes are at different times ?

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 Can you explain why falling down of small and big parachutes are at different times ?

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Gravity and Air resistance.
If jumped down from a height, a person falls due to gravity ( earth pull) but parachute saves him because of air resistance by increasing the surface area.

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How does a Parachute Work? - Science for Kids | Educational Videos by Mocomi

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Friction and Air Resistance both hinder, oppose and stop motion. 

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Friction and Air Resistance both hinder, oppose and stop motion. 

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Students predict and check yourself if your predictions are correct. Share your learning experience,

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How to Demonstrate Air Resistance | Science Projects

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By Ashveneh Khan
Today I learnt that Friction is useful in daily life.It slows down and stops vehicles , enables us to walk , sit and hold on to things without slipping and Friction between moving parts can be reduced by using lubricants,such as oil and wax too

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Friction & Motion by Abdullah Hassan IV-B

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Friction & Motion by Abdullah Hassan IV-B

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Q1: Do you think friction is important? How?
Q2: How is friction helpful in different scenarios?
Q3: Do you observe friction in your daily life? Is it useful? How? Also share disadvantages if any.

A1: Yes, friction is important because when somebody is driving a vehicle, the friction travels on the opposite side and stops the car from crashing or having an accident with another vehicle. It also enables the car to use its brakes.

A2: Friction helps matchsticks to catch on fire, and it helps anyone from slipping.

A3: Yes I do. I rollerskate, so the friction helps in stopping me from crashing or slipping. So, in fact, it is useful. A disadvantage is that friction does not work on slippery surfaces.

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Q.1: Do you observe friction in your daily life?
Ans.1: Yes I observe friction in my daily life.
Q.2: Is it useful? How?
Ans.2: Yes it is useful for example friction helps in producing fire by rubbing a matchstick with a matchbox and by rubbing 2 stones together. It helps in the movement of vehicles so vehicles can move smoothly.
Q.3: Also share disadvantages if any.
Ans.3: The disadvantage of friction is that it doesn't let machines with parts which are moving move easily.
Q.4: How's friction helpful in different scenarios?
Ans.4: It is helpful because it produces heat and it helps in the movement of vehicles.
Q.5: Do you think friction is important? How?
Ans.5: Friction is important. It helps us in some works. It helps us produce heat and it helps in the movement of vehicles.

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Today I learnt that when there is more friction objects can't slide on each other easily and when there is less friction objects can slide on each other easily. When two objects slide on each other the friction does the opposite and tries to stop or slow down the speed of those things by pushing them to the opposite side.

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Q.1Do you observe friction in your daily life?

Ans: Yes I observe friction in my daily life.

Q.2 Is it useful? How?

Ans: Yes,because when I ride my bicycle friction helps me to move it we may not be able to perform many tasks properly.

Q.3 Also share disadvantages if any.

Ans: Yes there are so many disadvantages like when it rains the road gets wet so when a car use brakes the car slips.

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What is friction?
ans Friction is a force between two surfaces that are sliding, or trying to slide, across each other. For example, when you try to push a book along the floor, friction makes this difficult.

Friction always works in the direction opposite to the direction in which the object is moving, or trying to move. Friction always slows a moving object down.

q2 do u think friction is important?
ans  Yes Friction can be a useful and important force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding.

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Friction: Muhammad Bilal -4-C
I understand that Friction is a force that opposes motion. Force can change the shape of objects.

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1) What is friction?

A. Friction is a force that acts in the opposite direction of the moving object.

2) Do you think friction is useful?

A. I think friction is useful because it is really really useful in our lives. It helps us to walk and grip on to things.

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Water reduces the friction between hands and the container, making it very difficult for us to grip or hold the container easily

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Friction or a frictional force is a force that opposes motion when two surfaces are in contact. It slows down movement and brings objects to a stop and without friction cars won't be able to slow down and break.

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IV-C
Friction enables us to hold on things without slipping.
2. Friction between your moving hands produces heat that warms up.
3. The friction between the eraser and the table surface causes the eraser to wear off.
4. Friction causes wear and tear of shoes soles and tyres of car and bicycles too!.
5. The tread patterns on the soles of shoes and tyres help grip on to the surface of the ground.

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Ashveneh Khan
IV-B
Friction is a force that opposes motion when two surfaces are in contact. It slows movement and brings moving objects to stop.

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the friction is a force that is create when two suface move or try to move across each other. the amount of friction is produced during this process depends on the texture of both the surfaces and the amount of force is pushing the two surfaces together.

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Friction And How Object Move                    

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Friction And How Object Move                    

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Iraj Siddiqui
IV-D

Q1- What is Friction?
Ans1- Anytime two objects rub against each other, they cause friction.
Q2- Do you think friction is important?
Ans2- it is important  in many applications where you might want to hold items or do things and prevent slipping or sliding.

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24-03-20
Friction
friction is the force between two surfaces sliding against each other.
with the help of friction we can walk , drive , hold things etc. friction will increase on rough surfaces as compare to smooth surfaces.

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If push or pull something, it will stop. Do you know why it will stop? It will stop because of friction. Friction helps us in our daily lives but it can also damage things as well. If some parts of a machine are over heating because of friction. We can use greece too reduce the amount of friction. The soul under our shoe gets warn out so quickly because of friction. The same thing happens to the wheels of cars, bikes ect.
By Hasan Ali
Class IV-D
Date 23/03/20

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This is friction

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How friction is helpful in different scenarios?
Scenario of moving ball
The force of friction is acting in the opposite direction.
Scenario of ice ring floor/road
The force of friction is lesser than the road.Road is having high friction.Skating on ice ring floor is easier to skate and ice ring floor has low friction.
Scenario of holding a bottle :
The bottle doesn't flips down because the surface of your hand offer a friction in the upward direction.

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friction is use full? how?
also share  your disadvantages if any.
yes, friction is use full in our daily life because if there will be no friction so how we will walk run and drive the car.
friction includes in our daily life advantages: if there will be no friction our life will become more difficult.
we cant even stand straight without friction and moving will never stop if there will be no friction .dis advantages:
there can be wastage of fuel and the tires can be worn out.