Topic 5: Energy

Question 1

What are the forms of energy?

Answer 1

chemicals, electrical, electromagnetic, nuclear, mechanical, and thermal

Question 2

Potential energy

Answer 2

stored energy

Question 3

Kinetic energy

Answer 3

energy of motion

Question 4

What does the Law of Conservation of Energy state?

Answer 4

energy cannot be lost or destroyed, only changed from one form to another

Question 5

Heat

Answer 5

the transfer of energy (often thermal energy) from a body of higher temp. to a body of lower temp.

Question 6

Temperature

Answer 6

a measure of average kinetic energy
NOT heat and NOT a form of energy

Question 7

Fusion

Answer 7

melting SOLID to LIQUID

Question 8

Solidification

Answer 8

freezing LIQUID to SOLID

Question 9

vaporization

Answer 9

boiling, evaporation LIQUID to GAS

Question 10

exothermic processes…

Answer 10

give OFF heat energy, raising the temp. of the environment

Question 11

endothermic processes…

Answer 11

ABSORB heat energy, lowering temp. of environment

Question 12

Condensation

Answer 12

GAS to LIQUID
water vapor changing to liquid water

Question 13

Sublimation

Answer 13

SOLID to a GAS without changing first to liquid phase

Question 14

Deposition

Answer 14

water vapor changes directly to ice, GAS to SOLID, without changing first to liquid phase