Write the introduction of force ?
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A force is a push or a pull, so when you push a trolley have you noticed you have to apply a force to the trolley for it to move? It’s the same with pulling open a door!
These forces can change the speed of something, the direction it's going or its shape. If you push a box across the table it picks up speed, if you pull an elastic band it gets longer!
An example of push as a force would be to push on a swing. The force moves the swing in a particular direction and the harder you push the further the swing will go.

Measure the force:
We measure force in a unit called Newton, the symbol for it is N. 50 N is a bigger force than 10 N.
Understanding weight, mass and gravity:
Weight is a force and is measured in Newtons. It is caused by gravity .
Gravity is the force that attracts objects towards each other. Gravitational force will increase when masses are bigger and objects are closer. You can only notice the presence of gravity when the object is really big like a moon or planet.
Mass is measured in kilograms. The mass of something is the amount of matter that it contains, the more matter it has the greater the mass. A brick contains more matter than paper therefore it has a greater mass.
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These forces can change the speed of something, the direction it's going or its shape. If you push a box across the table it picks up speed, if you pull an elastic band it gets longer!
An example of push as a force would be to push on a swing. The force moves the swing in a particular direction and the harder you push the further the swing will go.

Measure the force:
We measure force in a unit called Newton, the symbol for it is N. 50 N is a bigger force than 10 N.
Understanding weight, mass and gravity:
Weight is a force and is measured in Newtons. It is caused by gravity .
Gravity is the force that attracts objects towards each other. Gravitational force will increase when masses are bigger and objects are closer. You can only notice the presence of gravity when the object is really big like a moon or planet.
Mass is measured in kilograms. The mass of something is the amount of matter that it contains, the more matter it has the greater the mass. A brick contains more matter than paper therefore it has a greater mass.
Hope it helps, plz mark brainliest.....
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ANSWER :-
FORCE
Push or pull acting on a body is called force
Force is a physical quantity which changes or tries to change the state of rest or motion of the body
It is denoted by "F"
If applied force is sufficient , then only the body comes into motion
If you fail to move the wall by pushing , that means applied force isn't sufficient to move the wall
Force decreases motion of body when applied in the opposite direction to the motion of the body
Force increases the motion of the body when applied in the direction of motion of the body
Force can change the shape of the body
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