midterm review

Match it! Select the correct answer from the pull down...Good luck!

Friction is a force that encourages motion between two surfaces

Under certain conditions, it is possible to get more work out of a machine than you put into it

Energy is the abitlity to cause change

In order for work to be done on an object, the object must move

Jane is on a merry-go-round that is moving a constant speed. Her velocity is also constant

Energy does't have to involve motion

Lowering an object decreases its potential energy

As mass decreases, kinetic energy increases