Forces and motion

Front

What is force?

Back

A push or pull on an object that can cause it to change its motion.

Front

What is motion?

Back

A change in an object's position over time.

Front

What is the relationship between force and motion?

Back

Force causes an object to move or change its motion.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the unit of force?

Back

Newton (N).

Front

What is balanced force?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is unbalanced force?

Back

Forces that are not equal, causing a change in motion.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is acceleration?

Back

The rate of change of velocity of an object.