Unit 6- Thermodynamics

Question 1

Temperature

Answer 1

Measure of average kinetic energy of an object’s particles

Question 2

Higher temperature = (faster, slower) moving particles

Answer 2

faster

Question 3

Heat

Answer 3

flow of energy from a “warm” object to a cold one

Question 4

Name the 3 temperature scales

Answer 4

Kelvin
Fahrenheit
Celsius

Question 5

Boiling Points of Water in 3 Temperature Measurements

Answer 5

100 CELSIUS
212 FAHRENHEIT
373 KELVIN

Question 6

FREEZING points of water in 3 different Temperature Measurements

Answer 6

0 CELSIUS
32 FAHRENHEIT
273 KELVIN

Question 7

Fahrenheit to Celsius

Answer 7

C=(F-32)/1.8

Question 8

Celsius to Fahrenheit

Answer 8

F=1.8(C)+32

Question 9

Celsius to Kelvin

Answer 9

K=C+273

Question 10

Kelvin to Celsius

Answer 10

C=K-273

Question 11

Kinetic Theory

Answer 11

states that all matter is made of constantly moving particles that collide without losing energy

Question 12

Thermal Energy

Answer 12

Total amount of energy in an object

Question 13

Specific Heat

Answer 13

amount of energy needed to raise 1 unit of mass 1 degree in temperature

Question 14

Conduction

Answer 14

transfer of heat by direct contact between particles

Question 15

Convection

Answer 15

Transfer of heat through a fluid or gas with hotter molecules rising and cooler molecules sinking

Question 16

Radiation

Answer 16

transfer of heat through electromagnetic waves

Question 17

Thermal insulator

Answer 17

slows down heat transfer because of air pockets

Question 18

Thermal conductor

Answer 18

easily allows transfer of heat

Question 19

Heat of Fusion

Answer 19

the amount of thermal energy needed to change a substance from a solid to a liquid

Question 20

Heat of Vaporization

Answer 20

amount of energy needed to change a liquid to a gas

Question 21

Endothermic Phase Changes

Answer 21

energy is absorbed by the substance in from its surroundings: melting, boiling, vaporization, sublimation

Question 22

Exothermic Phase Changes

Answer 22

Energy is released from the substance out to its surroundings: freezing, condensing, deposition