Science test 2/3 states of matter

Question 1

How does insulating hot water save energy

Answer 1

Insulating hot water will prevent heat from leaking out quickly, allowing easier heat up when needed.

Question 2

What is radiation

Answer 2

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

Question 3

random motion

Answer 3

particle movement in all different directions and speeds

Question 4

diffusion

Answer 4

the movement of particles from one area of high concentration to low concentration

Question 5

Conduction

Answer 5

is the transfer of particles by particle collisions or direct contact

Question 6

convection

Answer 6

is the transfer of heat by movement of particles from one part of a material to another. Flow like motion

Question 7

radiation

Answer 7

is the transfer of heat by electromagnetic waves

Question 8

ex: convection

Answer 8

touching the stove and getting burned, or ice cooling your hand

Question 9

ex: convection

Answer 9

steaming cup of tea, or cool air sinking

Question 10

ex: radiation

Answer 10

sun giving off warmth, or heat from a lightbulb or fire.

Question 11

States of matter

Answer 11

solid, liquid or gas

Question 12

temperature when matter changes states

Answer 12

The temperature stays the same until full transformation

Question 13

solid to liquid

Answer 13

melting

Question 14

liquid to solid

Answer 14

freezing

Question 15

liquid to gas

Answer 15

vaporization

Question 16

gas to liquid

Answer 16

condensation

Question 17

gas particles

Answer 17

move at high speeds with high kinetic energy. Can expand and contract

Question 18

solid particles

Answer 18

move in place/ vibrating with low kinetic energy. No space to expand or contract

Question 19

condenstation

Answer 19

gas to liquid

Question 20

vaporization

Answer 20

liquid to gas in between boiling and evaporation

Question 21

measure of average kinetic energy

Answer 21

temperature is the measure of particle motion along with average kinetic energy

Question 22

kinetic energy

Answer 22

energy in motion

Question 23

potential energy

Answer 23

stored energy

Question 24

examples of kinetic energy

Answer 24

bouncing a ball, running, skipping rope.

Question 25

good conductors of heat

Answer 25

metal, iron, copper, aluminum

Question 26

bad conductor of heat

Answer 26

plastic, wood, cloth

Question 27

what is evaporation

Answer 27

on the surface of the water. Boiling at lower temperature, like water in a cup will evaporate in days with room temperature.