Balanced and Unbalanced Forces

Front

What is the principle that states for every action there is an equal and opposite reaction?

Back

Newton's Third Law of Motion.

Front

What is the net force of an object that is not moving?

Back

0 N (zero Newtons).

Front

What is the definition of net force?

Back

The sum of all forces acting on an object.

Front

What is the unit used to measure force?

Back

Newton (N).

Front

What do we call forces that are equal in size but opposite in direction?

Back

Balanced Forces.

Front

What do we call forces that cause an object to accelerate?

Back

Unbalanced Forces.

Front

If two forces of 20 N are acting in opposite directions, what is the net force?

Back

0 N (the forces cancel each other out).

Front

What happens to an object when the net force acting on it is greater than zero?

Back

The object will accelerate in the direction of the net force.

Front

What is an example of a balanced force in everyday life?

Back

A book resting on a table (the weight of the book is balanced by the upward force of the table).

Front

What is an example of an unbalanced force?

Back

A soccer ball being kicked (the force of the kick is greater than the opposing forces).