balanced and unbalanced forces

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction. They do not cause a change in the motion of an object.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal in size or opposite in direction. They cause a change in the motion of an object.

Front

What happens to an object when balanced forces act on it?

Back

The object will not move or will continue to move at a constant speed in a straight line.

Front

What happens to an object when unbalanced forces act on it?

Back

The object will accelerate, change direction, or change its speed.

Front

Give an example of balanced forces.

Back

A book resting on a table is an example of balanced forces.

Front

Give an example of unbalanced forces.

Back

A baseball that has been thrown to home plate is an example of unbalanced forces.

Front

What is the effect of balanced forces on a stationary object?

Back

The stationary object will remain at rest.

Front

What is the effect of unbalanced forces on a moving object?

Back

The moving object will change its speed or direction.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.

Front

How does friction relate to balanced and unbalanced forces?

Back

Friction can create unbalanced forces that slow down or stop moving objects.