chp 5 lessons 1-3

Question 1

is the sum of the kinetic energy and the potential energy of the particles that make up a material

Answer 1

thermal energy

Question 2

the energy an object or a particles has because it is moving

Answer 2

kinetic

Question 3

stored energy

Answer 3

potential energy

Question 4

represents the average kinetic energy of the particles that make up a material

Answer 4

temperature

Question 5

temperature scales????

Answer 5

Calvin
Celsius
Fahrenheit

Question 6

the movement of thermal energy from a warmer object to a cooler object

Answer 6

heat

Question 7

how could you describe the energy of a moving a object

Answer 7

you can say the object as kinetic energy

Question 8

how are thermal energy and mechanical energy similar? how are they different?

Answer 8

thermal energy is the sum of the kinetic energy and the potential energy of the particles that make up a material. Mechanical energy is the motion of the object. they are the same because they are both something to do with distance, distance from earth and distance from particles.

Question 9

how are temperatures and kinetic energy related?

Answer 9

temperature represents the average kinetic energy of the particles that make up a material.

Question 10

what happens to the motion of the particles in the air as the temperature increases?

Answer 10

the greater average kinetic energy of particles, the greater the temperature

Question 11

how do heat and thermal energy differ?

Answer 11

When you heat thermal energy transfers from one object to another

Question 12

the sum of kinetic energy and potential energy of the particles in a material ______

Answer 12

thermal energy

Question 13

the transfer of thermal energy from one material to another by electromagnetic waves

Answer 13

radiation

Question 14

the transfer of thermal energy between materials by the collisions of particles

Answer 14

conduction

Question 15

is a material through which thermal energy flows easily doesn’t flow easily

Answer 15

thermal insulator

Question 16

the amount of thermal energy required to increase the temperature of 1 Cº of a material

Answer 16

specific energy

Question 17

is a decrease in a materials volume when its temperature increases

Answer 17

thermal contraction

Question 18

is an increase in a materials volume when its temperature increases

Answer 18

thermal expansion

Question 19

a space that contains little or no matter

Answer 19

vaccum

Question 20

is the transfer of thermal energy by the movement of particles from one part of a material to another

Answer 20

convection

Question 21

the movement of fluids in a cycle because of a convection

Answer 21

convection current

Question 22

how does the sun heat the inside of a car

Answer 22

the temperature of thermal conductors, such as the safety- belt buckles, increases more quickly than the temperature of thermal insulator, such as a seat material

Question 23

what does it mean if a material has a low specific heat?

Answer 23

a low specific heat means it does take much to heat to rise its temperature

Question 24

what happens to the volume of a gas when its is heated.

Answer 24

thermal expansion

Question 25

what are the three process that transfers thermal energy?

Answer 25

radiation, conduction, and convection

Question 26

a device that converts electric energy into thermal

Answer 26

heating appliance

Question 27

is a device that regulates the temperature of a system

Answer 27

thermostat

Question 28

is a substance that evaporates at a low temperature

Answer 28

coolant

Question 29

a device that uses electricity to transfer thermal energy from a cooler location to a warmer location

Answer 29

refridigerator

Question 30

is a machine that converts thermal energy into mechanical energy

Answer 30

heat engine

Question 31

what energy transformation occur in a heating appliance

Answer 31

thermal to mechanical

Question 32

how does the bimetallic coil in a thermostat respond to heating and cooling

Answer 32

two types of metal joined together and bent into a coil. the metal on the outside expands of the coil expands and contracts more than the metal on the outside of the coil. After the room warms, the thermal energy in the air causes the bimetallic coil to uncurl slightly.

Question 33

how does a refrigerator keep food cool?

Answer 33

pipes that surround the refrigerator are filled with a fluid, called coolant, that flows through the pipes. thermal energy from inside the refrigerator transfers to the coolant keeping the inside of the refrigerator cold

Question 34

what is one form of energy that is output from a heat engine

Answer 34

mechanical

Question 35

a____ is a device that converts electrical energy into thermal energy.

Answer 35

refrigerator

Question 36

at what temperature does water freeze, in c and f

Answer 36

0ºc and 32ºf