Force and Motion

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What are the two types of forces?

Back

The two types of forces are contact forces (like friction) and non-contact forces (like gravity).

Front

What is friction?

Back

Friction is the force that slows and stops motion between touching objects.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, like the Earth pulling us down.

Front

What is a push?

Back

A push is a force that moves an object away from you.

Front

What is a pull?

Back

A pull is a force that moves an object closer to you.

Front

How do pushes and pulls affect motion?

Back

Pushes and pulls can start, stop, or change the direction of an object's motion.

Front

What is the best way to conduct an experiment?

Back

The best way is to change only ONE variable at a time.

Front

What happens when two forces act in the same direction?

Back

When two forces act in the same direction, they combine to make a stronger force.

Front

What happens when two forces act in opposite directions?

Back

When two forces act in opposite directions, they can cancel each other out or create a net force.