Forces

Front

What is a force?

Back

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

Front

What is gravity?

Back

Gravity is the force that pulls objects toward the Earth.

Front

What happens when two magnets with the same poles face each other?

Back

They repel each other.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

How can the strength of a magnet be tested?

Back

By counting how many paper clips it can lift.

Front

What is motion?

Back

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

Front

What is the effect of mass on motion?

Back

More mass means more force is needed to change the motion.

Front

What is a rubber band car?

Back

A rubber band car is a toy car powered by the energy stored in a wound rubber band.

Front

What is the role of a variable in an experiment?

Back

A variable is a factor that can change and affect the outcome of an experiment.

Front

What is an example of a contact force?

Back

Friction is an example of a contact force.