Definitions

Question 1

absorb

Answer 1

To take in energy

Question 2

condense

Answer 2

Gas turns into liquid

Question 3

conduction

Answer 3

The way heat travels through solids

Question 4

conductor

Answer 4

A material which lets energy flow through it easily

Question 5

Contract

Answer 5

Get smaller

Question 6

convection current

Answer 6

A current created by heat causing changes in the density of a fluid

Question 7

emit

Answer 7

To give out energy

Question 8

evaporate

Answer 8

liquid turns to a gas

Question 9

Gas

Answer 9

Particles that are spread out and not attached to each other

Question 10

Heat insulator

Answer 10

Material that does not let heat flow through it easily

Question 11

infrared radiation

Answer 11

A wave that can travel through transparent things and a vacuum

Question 12

insulator

Answer 12

a material that doesn’t let energy flow through it easily

Question 13

joules

Answer 13

the units for measuring energy

Question 14

liquid

Answer 14

something made of particles that are touching in an irregular array, but can move past each other

Question 15

melt

Answer 15

when a solid turns into a liquid

Question 16

radiation

Answer 16

the transfer of heat energy by electromagnetic waves

Question 17

solid

Answer 17

made of particles that are close together in a regular array but can’t move past each other

Question 18

thermal energy

Answer 18

another name for heat energy

Question 19

Temperature

Answer 19

a measure of how hot/cold an object is. Determined by the average kinetic energy of particles.