Force and Motion

Front

What is friction?

Back

Friction is a force that opposes the motion of one object moving past another.

Front

What keeps an object in motion?

Back

An object in motion will stay in motion unless a force acts on it.

Front

Who discovered the Law of Gravity?

Back

Sir Isaac Newton is well known for researching the Law of Gravity.

Front

What is mass?

Back

Mass is a measure of how much matter is in an object.

Front

What is weight?

Back

Weight is the measure of how heavy something is.

Front

What happens to objects in free fall?

Back

All objects fall at the same rate of speed, regardless of their mass.

Front

What is inertia?

Back

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

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

Front

What is motion?

Back

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