Heat and Heat Technology

Question 1

temperature

Answer 1

a measure of how hot or cold something is; specifically a measure of the average kinetic energy of the particles in an object

Question 2

thermal expansion

Answer 2

an increase in the size of a substance in response to an increase in the temperature of the substance

Question 3

absolute zero

Answer 3

the temperature at which molecular energy is at a minimum (0 K on the Kelvin scale or -273.16 C on the Celsius scale)

Question 4

heat

Answer 4

the energy transferred between objects that are at different temperatures

Question 5

thermal energy

Answer 5

the kinetic energy of a substance’s atoms

Question 6

thermal conduction

Answer 6

the transfer of energy as heat through a material

Question 7

thermal conductor

Answer 7

a material through which energy can be transferred as heat

Question 8

thermal insulator

Answer 8

a material that reduces or prevents the transfer of heat

Question 9

convection

Answer 9

the transfer of thermal energy by the circulation or movement of a liquid or gas

Question 10

radiation

Answer 10

the transfer of energy as electromagnetic waves