Question 7

Which of the following is an example of work?

A) Holding a trophy

B) Holding a barbell in your hands

C) Picking up a box off the floor

Question 8

How is power defined?

A) The total distance an object is moved

B) The quantity of work accomplished

C) The rate at which work is accomplished

Question 9

If you have used a flight iof stairs to walk from one floor to another, then you have used:

A) An inclined plane.

B) A compound machine.

C) A wedge.

Question 10

A lumberjack uses a gas powered saw instead of an axe to cut down a tree.

A) The gas powered saw does more work than the axe, therefore the amount of work increased.

B) The gas powered saw cut down the tree faster, therefore there was more power involved.

C) Both of the above.

Sorry, I'm doing a 10 question test and I had four questions im stuck on; please help quickly! This is due by 11:30 AM today...