Thermodynamics

Question 1

Heat Transfer: Conduction

Answer 1

Heat transferred by direct contact

Touching a stove

Question 2

Heat Transfer: Convection

Answer 2

Heat transferred by currents in liquid or gas

Steam

Question 3

Heat Transfer: Radiation

Answer 3

heat transferred by electromagnetic waves

Heat from a fire

Question 4

Insulator

Answer 4

Doesn’t allow heat to pass through

plastic, rubber, glass, wood, cloth

Oven mitt

Question 5

Conductor

Answer 5

Allows heat to pass through

Metals - copper, aluminum, steel

Metal spoon

Question 6

Thermal Energy

Answer 6

Heat

Substance with more particles has more thermal energy, even if it is colder

matter expands when hotter - wires sag in heat

Question 7

Temperature

Answer 7

Measure of the kinetic energy of an object (movement)
Hotter more movement

Question 8

Celcius

Answer 8

Official Scientific Scale - Based on freezing and boiling points
Freezing - 0
boiling - 100

Question 9

Fahrenheit

Answer 9

Used in the US
Freezing - 32
Boiling - 212

Question 10

Kelvin

Answer 10

based on lowest possible temp - absolute zero
Freezing - 273
Boiling - 373

Question 11

Heat Movement: System

Answer 11

Surroundings, endothermic, exothermic

Question 12

Heat Movement: Endothermic

Answer 12

Heat entering the system

Cooler than surroundings - Ice

Question 13

Heat Movement: Exothermic

Answer 13

Heat exiting the system

Hotter than surrounding - fire

Question 14

Specific Heat Capacity

Answer 14

q=mCAT
q-quantity of heat transferred (absorbed)
m - mass of the object (g)
C - specific heat capacity of the material (J/g/C)
AT - Change in temperature