Force

Front

What is gravity?

Back

Gravity is a force that pulls objects towards Earth.

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Front

What happens to speed when there is more friction?

Back

More friction decreases speed.

Front

On which surface will a toy car travel the furthest?

Back

A toy car will travel the furthest on ice.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.

Front

What are the two types of forces?

Back

The two types of forces are contact forces and non-contact forces.

Front

What is an example of a contact force?

Back

An example of a contact force is friction.

Front

What is an example of a non-contact force?

Back

An example of a non-contact force is gravity.

Front

How does mass affect gravitational force?

Back

The greater the mass of an object, the stronger the gravitational force it exerts.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).