Question

If you were the owner of a company that produced cleaning products which claimed they could remove oil stains, and the government asked you to provide evidence that this was true, which would be the best evidence to provide? A. A video showing the product cleaning an oil stain from a T-shirt. B. Give the product to the government official so they could try it. C. Letters from happy customers stating how great the product works. D. Multiple scientific research studies that were peer reviewed and show that the product can remove oil.

Answer 1

D

Answer 2

When a solid changes to a liquid, energy is:
A. Absorbed
B. Released

Answer 3

B

Answer 4

Which of the following is the best definition of energy?
A. the movement of matter through space
B. the ability to do work
C. the degree to which an object is affected by heat

Answer 5

A, I think.

Answer 6

The __________ energy of a turbine is converted to ____________ energy by a generator.
A. Light, heat
B. Heat, chemical
C. Mechanical, electrical
D. Electrical, so

Answer 7

I'm pretty sure it's C.

Answer 8

When a gas changes to a liquid, energy is:
A. Absorbed
B. Released

Answer 9

B

Answer 10

How is steam used to generate electricity?
A.It is used to spin a turbine and generate mechanical energy, which can then be converted to electrical energy.
B.It is used to harness the energy inside atoms.
C.It is used to convert chemical energy to mechanical energy.

Answer 11

A. I think.

Answer 12

The process by which a liquid changes to a gas is:
A.Absorption
B.Evaporation
C.Condensation
D.Vaporization