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In this video i have learned about machines and types of levers.
○ machines are the appratus used in our daily life e.g juicers, blenders, sewing machine, washing machine.
○ Then further i learnt about lever, Lever is known as a simple machine which is used often in our daily lives.
○ A lever is defined as a long stick which we push or pull against a fulcrum to move an object or something easily.
○ Lever makes it easy to lift weight, if we use a lever, we will be able to use less force.
Further more, i learnt the
Essential parts of lever:
● Effort
●Load
● Fulcrum
Then the different classes of lever were discussed.
First class lever:
The class in which fulcrum is between load and effort.
Second class lever:
The load is between is betweem fulcrum amd effort.
Third class lever:
The lever in which effort is between fulcrum amd load.
Application of lever:
Th apllication of lever are as follows:
•Scissors
•Pliers
•See-saw
•Hammer
•Wheel barrow
•Nut cracker
• Fishing rod
•Tong
•Stapplers
These were so far the topics that were discussed im detail within this video.
Fatima Mahmood Butt
V Red

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What is are Machines and Simple machines:
Machine is any structure that makes our work easier and simple machines are those machines that have a few or no moving parts at all for example scissors.
Lever :
A lever is basically a long stick that you push or pull against a fulcrum to move something. It is a rigid bar that moves around a fixed support called fulcrum. A lever essentially has three parts:
Effort: It is a point where you apply force.
Load : Where you want the force applied to act.
Fulcrum: It is a fixed support.
How a lever works :
Object to be moved or lifted is placed on one side of the rigid bar and force is applied on the other side of the bar to lift the object.
Three Types of Lever :
First Class Lever : The fulcrum is between the effort and load for example scissors.
Second Class Lever : The load is between the effort and fulcrum for example wheel barrow.
Third Class Lever : The effort is between fulcrum and load for example fishing rod.

Adla Shahid
V Red

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Lever makes Our work more easier to do anything in our daily lives we also use lever in our daily lives it has there are three Main things shown in the video

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Lever makes Our work more easier to do anything in our daily lives we also use lever in our daily lives it has there are three Main things shown in the video

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Effort
Load and
Fulcrum

Effort is a point where force is used

Load is a point where you want force

Fulcrum is a fixed support

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Lever is a simple machine and we use it in our daily life to make our work easier.
A lever essentially has three parts:
Effort:
effort is a point where force is a applied.
Load:
load is a point where you want the force applied to act.
Fulcrum:
fulcrum is a fixed support.

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Lever is a simple machine often used in our daily life. A lever is a long stick that we push or pull.
There are 3 parts of levers
-Effort : where u apply force
-Load: where force is applied at
-Fulcrum: is a fixed support
There are 3 types (Classes) of levers
-First class : the fulcrum is between load and effort (ex scissors and pliers)
-Second class: The load is between effort and fulcrum (ex staplers and wheel barrow)
Third class: The effort is between fulcrum and Load (ex tong and fishing rod)

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ZARA SULEMAN PALL
From this video , my key learning is  that what is are simple machines and what are levers .

1.  So first i have learned that machines make are work easier e.g , a washing machine , a microwave , a fridge and lots more .

2. Then what is a lever . A lever is a bar  with a wieght . The bar is called a Rigid bar and the weigth is called a Fulcrum  .

3. That there are three types of levers . First class lever and second class lever and third class lever

4.   In first class lever the Fulcrum is in the middle  the force is on the right  and the load is on the left side .

5. In the second class lever the the load is in the middle and the Fulcrum is on the left and the force is on the right .

6. And last but not least  the Third class lever  . In this lever the force is in the middle the the Fulcrum is on the left and the load is on the right

Thank you all  for reading  my key learning  for the day 😁

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A boy was making a circuit,a girl come and asked what are you doing?. Boy say l am making a electrical circuit .The girl told him about the if their is no cell in the circuit the circuit will Complete circuit and a electric current happen when electrons flow of from negative to positive is called current.For current to flow, we need some thing to make it flow like a cell or battery.we need a complete path I.e.complete circuit for Electricity to flow . There are two types of circuits series circuit and a circuit.
The series  circuit is a circuit that if we remove the one wire that all light will off and it used for Christmas and Diwali .A parallel circuit is a circuit if we remove one wire only one Bulb will off.

Thanks ❤️

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Electric circuits
From these informative key points I lerned about the  series circuit, all components are connected end-to-end, forming a single path for current flow. In a parallel circuit, all components are connected across each other, forming exactly two sets of electrically common points.If a wire joins the battery to one bulb, to the next bulb, to the next bulb, to the next bulb, then back to the battery in one continuous loop, the bulbs are said to be in series. If each bulb is wired to the battery in a separate loop, the bulbs are said to be in parallel.I also learned that how to make a diy of electric circuits
Thank you
👍

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5 red
So first a boy is making electrical circuit and simply electrical circuit is a piece of villa the one of the battery to the anther and listate circuit flow  in the villa but nothing use full happened just battery get hot 🔥  and for current to flow we need something to make it flow like a cell or battery amd we need a complete path i e to complete circuit for electricity flow . If a wira joins the battery to one bulb , to the next , to the next bulb then back to the battery in one continuous loop the bulb are said to be in series
Thank you 😊

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When wire is connected to each end of a battery the electrons begin to flow from negative to positive. This flow of electrons is called current. There are two types of circuits:
Series Circuit
In a series circuit the components are connected end to end one after the other.
Benefits of Series Circuit
1: It uses less amount of wires
2: If you want a warning that one of the components in the circuit has failed than a series circuit is used.

Parallel Circuit
In a parallel circuit the components are connected side by side.

Benefits of Parallel Circuit
Parallel circuits are useful if you want everything to work, even if one component has failed.

Adla Shahid
V Red

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So first thing that we have to do is the bulbs long leg on the black wire,then what we have to do is to connect the short leg on both red wires through the switch then we turn the switch on which makes the bulb to light up.

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ZARA PALL Today, after watching all the videos my key learning is to define  that is a simple circut and what is a parallel circut .

A simple circut uses less wire and if we have two bulbs or more then two bulbs and if we cut them they both will go off. For example the fairy lights .

In  a parallel circut we need more then one wire and even if we put two bulbs and cut  one wire only one bulb will go off . For  example the lights  in our houses.

And over all i also learned how to make a proper circut, like we did in the class.

THANK YOU

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●light is composed of particles called photons which are masses bundles of concentrated electromagnetic energy and travel is waves
Rainbow 🌈
●When sunlight hits a rain droplet, some of the light is reflected the electromagnetic spectrum  is made of a light with many different wavelengths , and each is reflected  at a different angle. Spectrum is seperated,producing a rainbow.
-aleeza abid
-V red

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Rainbow
A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors. When light exits the droplet, it makes a rainbow.
Light
Light is made of particles called photons, bundles of the electromagnetic field that carry a specific amount of energy. With sufficiently sensitive experiments, you can count photons or even perform measurements on a single one.
Shadow
Shadows are formed when an opaque object or material is placed in the path of rays of light. The opaque material does not let the light pass through it. The light rays that go past the edges of the material make an outline for the shadow.

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Light energy is a form of electromagnetic radiation. Light consists of photons, which are produced when an object's atoms heat up. Light travels in waves and is the only form of energy visible to the human eye.
Rainbow:
A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors. When light exits the droplet, it makes a rainbow.
Rashmeen Adnan
Class:5 Orange

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Jannat Faisal
5red
Light ⚡:
Light is a form of energy it made up of photons. Photons are visible. Light can passes the object called transparent. When some light passes from the objects called translucent. When the light cannot passes from the objects called opaque. The earth is far from sun is 93 million miles away so sunlight takes 8 minutes to travels to earth.

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Light                                                                                               Anaya UMER                                                                5Orange                                                                      light is a form of energy made of photons. A photons is the smallest  unit of visible light. If light is an object and passes through it is called transparent object. If light cannot pass through the object is called opaque object. Humans are opaque as well. some objects allow light to pass through them they are called translucent object such as plastic, butter paper and frosted glass. Light travel fastest. Light travels 0.1 million miles per sound. The distance between earth and sun is 93 miles and it takes 8 minutes to reach the earth. Light takes 1.2 seconds to reach the moon from earth.

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Light                                                                                               Anaya UMER                                                                5Orange                                                                      light is a form of energy made of photons. A photons is the smallest  unit of visible light. If light is an object and passes through it is called transparent object. If light cannot pass through the object is called opaque object. Humans are opaque as well. some objects allow light to pass through them they are called translucent object such as plastic, butter paper and frosted glass. Light travel fastest. Light travels 0.1 million miles per sound. The distance between earth and sun is 93 miles and it takes 8 minutes to reach the earth. Light takes 1.2 seconds to reach the moon from earth.

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5red
Rainbow  🌈:
Rainbow causes by sunlight. First when the rain starts if there will be sun so sunlight passes through the water droplets and exits the water droplets so it makes a rainbow.

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Light travels in a straight line and changes its speed as it passes through different mediums.  When light reflects on a mirror it bounces off and directly reflects in our eye which helps us to see.There are two types of reflections : Specular
When light falls on a smooth surface it reflects back on the same angle .
Diffuse
When light falls on a rough surface it reflects back in different angles and directions.
The white light is made up of seven colours . The rainbow 🌈 is made up of  droplets which is a example of refraction. Sir Isaac Newton was the first person to understand the rainbow.
Adla Shahid

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Fahad
Light can't pass a opaque object and when light reflects on a opaque body the light reflects.Some objects are low light to pass through them partially are called translucent objects

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Reflection:
A reflection  is when  the clear images can be seen an example for reflection is the mountains and the lake.The mountains reflect in the lake this called a reflection.There are two types of reflection diffuse reflection and specular reflection.Diffuse reflection
is when the rays of light hit the opaque surfaces,the  rays are reflected at lots of different angle because it is rough surface.This is called a diffuse reflection.
Specular reflection is when rays of light hit a smooth surface.All the rays reflect at the same angle.This produces reflection it is called a specular reflection.
Rainbow 🌈:
A rainbow is caused by sunlight and atmospheric conditions.Light enters a water droplet 💦, slowing down and bending as goes from air to denser water.The light reflects of the inside of the  separating into its component when light exists the droplet,it makes a rainbow.
Light:
Light always travels in straight light.Light is a form of energy that is made of photons.A photon is the smallest unit of invisible light.
If light hits a object and passes through it this object is  known as transparent object.
There are certain objects in
which light cannot pass these objects are called opaque objects.
Refraction:
Refraction happens when light passes from one transparent material to another transparent material of a different density.

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Rafay
The respiratory system is made up of organs that help our breathe. It includes air ways,lungs and blood vessels. The muscles that power our lungs are also known as respiratory system it helps us in passing gas exchange.

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Anaya manzoor
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.

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When we breath in oxygen goes from nostrils to wind pipe that is also called trechea from trechea it goes to bronchi  mucus is a sticky substance that collects germs that  can harm the lungs bronchi then carry air into each lung right lung has three lobes and left one has two lobes left one is smaller in size because that need to give space to heart these lobes are. Filled with air sacs that are called alveoli

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Shadow appears when something opaque block the light. Light cannot bend. If light is far away from the object shadow is small but when light is closer to the object shadow is big. Material that is transparent doesn't have a shadow for example a bubble Don't have a shadow.

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Shadow is nothing but the light that cannot pass through an object ,but you can only see shadow of object that are visible to eyes . For example :

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Shadow is nothing but the light that cannot pass through an object ,but you can only see shadow of object that are visible to eyes . For example :

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A tree will have a shadow ,but not air and water because light can pass  through them !
You can have multiple shadow.It all depends on the number of light sources . The more number of lights, the more shadows you will have.
Name: Areesha fatima
Class:5 red

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Shadow is a light that cannot pass through an object.
Closer the light source,bigger the shadow.
Light can pass through transparent object.
Light travels in a straight line and it can’t bend around the object
Huzaifa bilal

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You can only see shadows of objects such as your own hands or a tree but not air or wind

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The light that cannot pass an object is called opaque objects.Then it makes shadow.Light can pass transparent objects easley. But light source can pass translucent objects blurry.Light source can't change it's path it always goes in straight line.