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 two examples of forces?

Back

A push or pull.

Front

What do you need to calculate speed?

Back

You need distance and time.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the center of the Earth.

Front

What pulls a ball back to earth?

Back

Gravity.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is air resistance?

Back

Air resistance is a force that opposes the motion of an object through the air.

Front

What is friction?

Back

Friction is a force that opposes the sliding motion of two surfaces that are in contact.

Front

How does gravity affect falling objects?

Back

Gravity pulls objects down towards the Earth, causing them to fall.

Front

What happens to a crumpled piece of paper when dropped?

Back

It lands before a flat sheet of paper due to less air resistance.