Force and Motion

Front

What is friction?

Back

Friction is an opposing force that makes objects in motion slow down.

Front

If a student pushes against a wall with 20 N of force and the wall does not move, how much force does the wall exert?

Back

The wall exerts 20 N of force.

Front

What is a push or a pull called?

Back

A push or a pull is called a force.

Front

What causes an object to move?

Back

Unbalanced forces cause an object to move.

Front

What is the net force?

Back

The net force is the overall force acting on an object, calculated by combining all individual forces.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not cause a change in motion, while unbalanced forces do.

Front

What is an example of a force?

Back

An example of a force is gravity, which pulls objects toward the Earth.

Front

What happens when two forces of equal strength act in opposite directions?

Back

They create a balanced force, resulting in no movement.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

How does mass affect the motion of an object?

Back

The greater the mass of an object, the more force is needed to change its motion.