Forces

Front

What is a force?

Back

A force is a PUSH or PULL on an object.

Front

Which force pulls objects down towards the Earth?

Back

Gravity is the force that pulls objects down towards the Earth.

Front

What is the unit of measurement for force?

Back

The unit for force is N (Newtons).

Front

What happens when two people pull on a rope with equal force?

Back

They will not move at all.

Front

What is gravity?

Back

Gravity is the force that pulls things down or back to Earth.

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 motion of two surfaces sliding past each other.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Unbalanced forces are not equal and can cause an object to start moving, stop moving, or change direction.