Newton's Review

A boulder rolling down a hill will keep rolling until another force can act on it. This shows...

• Newton's first law

• Newton's second law

• Newton's third law

Which type of collision is pictured?

• Elastic collision

• Inelastic collision

The hammer pushing down on the nail is a(n)...

• Reaction force

• Action force

The nail pushing up on the hammer is a(n)...

• Reaction force

• Action force

If I double a force on an object, how much will its acceleration change?

• it will double

• it will half

• it will quadruple

If I double the mass of an object, how much will its acceleration change?

• it will double

• it will half

• it will quadruple

Power is the time it takes for work to be done on an object

• True

• False

Work is done when you force an object to change its....

• characteristics

• size

• volume

• displacement

Lowering a bar toward your chest is an example of...

• positive work

• negative work

• neutral work

• None of these

Positive work happens when the force and displacement are in the SAME direction

• True

• False