Chapter 15 Energy

Question 1

the ability to cause a change in matter

Answer 1

energy

Question 2

a law that states that energy can never be made or destroyed, but it can change forms

Answer 2

law of conservation of energy

Question 3

the energy of motion

Answer 3

kinetic energy

Question 4

the energy an object has because of its condition or position

Answer 4

potential energy

Question 5

the movement of energy from one place or object to another

Answer 5

energy transfer

Question 6

of the sun

Answer 6

solar

Question 7

energy that comes from the sun

Answer 7

solar energy

Question 8

_____ is radiation we see, and heat is radiation we feel

Answer 8

light

Question 9

stored energy; energy stored in fuel

Answer 9

chemical energy

Question 10

the combination of all the potential and kinetic energy that something has

Answer 10

mechanical energy

Question 11

energy that comes from an electric current

Answer 11

electric energy

Question 12

energy in the form of vibrations that travel through matter

Answer 12

sound

Question 13

the transfer of thermal energy between objects with different temperatures

Answer 13

heat

Question 14

the average kinetic energy of all particles in a substance

Answer 14

temperature

Question 15

a set of parts acting together as a whole object

Answer 15

system

Question 16

the transfer of thermal energy from one object directly into another

Answer 16

conduction

Question 17

the transfer of thermal energy through the movement of a gas or a liquid

Answer 17

convection

Question 18

the transfer of energy by waves that move through matter and space

Answer 18

radiation

Question 19

__________ occurs when heat or light bounces off an object.

Answer 19

reflection

Question 20

anything that slows the movement of thermal energy

Answer 20

insulator

Question 21

anything that allows thermal energy to move through easily

Answer 21

conductor

Question 22

electricity made by the energy of falling water

Answer 22

hydroelectric energy

Question 23

the remains or traces of past life found in sedimentary rocks

Answer 23

fossil

Question 24

fuel that formed from the remains of once-living things

Answer 24

fossil fuel

Question 25

any material that can be used to satisfy a need

Answer 25

resource

Question 26

a resource that, once used up, cannot be replaced within a reasonable amount of time

Answer 26

nonrenewable resource

Question 27

using less of something to make the supply last longer

Answer 27

conservation

Question 28

a resource that can be replaced within a reasonable amount of time

Answer 28

renewable resource

Question 29

anything that dirties or harms the environment

Answer 29

pollution