Homework Questions - Science Forms Of Energy printable pdf download

Homework Questions - Science Forms Of Energy

Ms. Glynn

Name:_____________

8th Grade Science

Date:______________

Multiple Choice

1) Of the following units, the one that is a unit of energy is

a. Newton

b. Joule

c. Meter

d. Liter

2) A stationary object may have

a. potential energy

b. velocity

c. kinetic energy

d. acceleration

3) Which is the best example that something has kinetic energy?

a. a car parked on a steep hill

b. a tennis ball rolling across the court

c. a picture hanging on the wall

d. a piece of coal before it's burned

4) Conservation of energy means that

a. energy can be created but not destroyed

b. energy can be destroyed but not created

c. energy can both be created and destroyed

d. energy can neither be created nor destroyed

5) When coal is burned to produce electricity, the electrical energy produced is less than

the potential energy of the coal. Which best explains this observation?

a. as the coal is heated, the molecules move so fast that they are destroyed

b. some of the energy in the coal is destroyed by the intense heat required to release its

potential energy

c. some of the potential energy in the coal is converted into forms of energy other than

electricity

d. the amount of energy in the coal is not known

Homework Questions - Science Forms Of Energy