Chapter 10 Heat and Heat technology

Question 1

temperature

Answer 1

a measure of the average kinetic energy of the particles in an object

Question 2

thermal expansion

Answer 2

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 -273.16C

Question 4

Bimetallic Strip

Answer 4

Used in thermostats, two different metals stacked in a thin strip.

Question 5

Heat

Answer 5

the energy transferred between object that are at different temperatures

Question 6

Thermal energy

Answer 6

kinetic energy of a substances atoms

Question 7

Thermal conduction

Answer 7

the transfer of energy as heat trough a material

Question 8

thermal conductors

Answer 8

a material through which energy can be transferred as heat

Question 9

thermal insulator

Answer 9

a material that reduces or prevents the transfer of heat

Question 10

convection

Answer 10

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

Question 11

radiation

Answer 11

the transfer of energy as electromagnetic waves

Question 12

specific heat

Answer 12

the quantity of heat required to raise a unit mass of homogeneous material 1 K or 1 C in a specified way given a constant pressure and volume

Question 13

states of matter

Answer 13

the physical forms of matter which include solid liquid and gas

Question 14

change of state

Answer 14

the change of a substance from one physical state to another

Question 15

insulation

Answer 15

a substance that reduces the transfer of electricity heat or sound

Question 16

heat engine

Answer 16

a machine that transforms heat into mechanical energy or work

Question 17

thermal pollution

Answer 17

a temperature increase in a body of water that is caused by human activity and that has a harmful effect on the water quality and on the abilityof that body of water to support life

Question 18

Explain how a refrigerator works

Answer 18

It uses a compressor and coolant to do work and transfer the thermal energy outside of the cooling area.

Question 19

Types of Heating

Answer 19

Hot water
Warm Air
Solar Heating

Question 20

Calorie

Answer 20

unit of energy used to measure chemical energy in food.

Question 21

Calrimeter

Answer 21

a device that measures heat.

Question 22

3 states of matter

Answer 22

gas, liquid, and solid, Know about these as well

Question 23

Equation for calculating Heat

Answer 23

Heat(J) = Specific Heat (J/kg*C) * mass (kg) * change in temperature (C)

Question 24

Celsius to Kelvin Equation

Answer 24

T(C)+273.15

Question 25

Kelvin to Celsius

Answer 25

T(K) -273.15