Balanced and Unbalanced Forces Notes

A car accelerating on a highway

A book resting on a table

A ball rolling down a hill

A person jumping off a chair

A change in motion occurs

The object remains at rest

The object disappears

The forces cancel each other out

The total of all forces acting on an object

The force of gravity only

The force of friction only

The force applied by a single object

You add the forces together

The net force is zero

The object will not move

The net force increases

You subtract the forces

The net force is always zero

The direction of the net force is the direction of the larger force

The forces are added together

All forces act in the same direction and are unequal in magnitude.

All forces acting on the object are opposite and equal in magnitude.

The object always accelerates when balanced forces act on it.

Balanced forces only occur when an object is moving at a changing speed.