Force
Definition
Force is a push or a pull that can change the motion, direction, speed, or shape of an object.
Main Details
Force is a push or pull.
It is measured in newtons (N).
It is represented by the symbol F.
Force can make an object move, stop, speed up, slow down, or change direction.
Force can also change the shape of an object.
There are contact forces (touching) and non-contact forces (without touching).
Examples
Pushing a shopping cart.
Pulling a suitcase.
Kicking a football.
Opening a door.
Gravity pulling objects to the ground.
A magnet attracting a paper clip.
Interesting Points
Every movement happens because of a force.
You cannot see a force, but you can see its effects.
Forces can work together or against each other.
Gravity is always pulling objects toward Earth.
Friction is a force that slows down moving objects.
Fun Fact
An astronaut on the Moon weighs much less than on Earth because the Moon's gravity is weaker, even though their mass stays the same!