Forces and Motion

Front

What is the force that pulls objects toward each other?

Back

Gravity is the force that pulls objects toward each other.

Front

What happens when a person pushes an object and a friend helps?

Back

The object moves faster.

Front

Which force keeps the moon in orbit around Earth?

Back

Gravity keeps the moon in orbit around Earth.

Front

Why does a ball that is hit into the air fall to the ground?

Back

A ball falls to the ground due to gravity.

Front

Which object requires more force to push?

Back

A heavier object requires more force to push.

Front

What is friction?

Back

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

Front

What is mass?

Back

Mass is the amount of matter in an object.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity.

Front

What is motion?

Back

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

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.