Exploring Physics Chapter 5

Question 1

James Prescott Joule found how mechanical energy due to motion compares to ___ energy.

Answer 1

heat

Question 2

Doubling mass of a moving object ___ its kinetic energy.

Answer 2

doubles

Question 3

Doubling velocity of a moving object makes its kinetic energy

Answer 3

four times as great

Question 4

Foot-pounds (English system) and joules (metric system) both measure

Answer 4

work

Question 5

The English and metric system units for measuring power are

Answer 5

horsepower and watt

Question 6

Work transfers _______________ from one place to another.

Answer 6

energy

Question 7

Energy can be changed from

Answer 7

one form to another.

Question 8

If you are pushing against a desk, what must happen in order for work to occur?

Answer 8

the desk must move

Question 9

Almost every time that energy changes form, the amount of what kind of energy increases?

Answer 9

heat

Question 10

Energy is a term that has been in use

Answer 10

since the 1800s

Question 11

The equation E = f x d is used to find

Answer 11

work