physics chapter 9-11

Question 1

kinetic paricle model of matter

Answer 1

a model in wich matter consists of moving particles

Question 2

absolute zero

Answer 2

the temperature at wich particles have no kinetic energy

Question 3

Brownian motion

Answer 3

the motion of small particles suspended in a liquid or gas, caused by molecular bombardment.

Question 4

temprature

Answer 4

the avarge energy of particles in a substance

Question 5

what is preussure to volume

Answer 5

inversely proportional

Question 6

thermal expansion

Answer 6

the increase in volume of a material when its temperature rises

Question 7

what 2 things are bad conductors of thermal energy

Answer 7

air and water

Question 8

convection

Answer 8

the transfer of thermal energy through a material by the movement of the material itself

Question 9

what is the main difference between convection and conduction

Answer 9

convection energy transferred from hot to cold through the movement of the material
in conduction energy transfered from hot to cold without the material moving

Question 10

what is density

Answer 10

the ratio of mass to volume in a substance

Question 11

whats diffrent about radiotion compared to the other types of energy tansfer

Answer 11

it doesnt need moving particles( can move through a vacum)

Question 12

what is infrared radition produced by

Answer 12

hot or warm objects

Question 13

what color abosrbed infared the best

Answer 13

black

Question 14

what color reflects infared the best

Answer 14

white

Question 15

low heat capacity

Answer 15

heats up faster

Question 16

high heat capacity

Answer 16

heats up slower

Question 17

what is the equation for specific heat capacity

Answer 17

ENERGY =
MASS (X)
SPECIFIC HEAT CAPACITY (X) TEMPERATURE CHANGE

Question 18

what is the defition of specific heat capacity

Answer 18

THE ENERGY NEEDED TO RAISE THE TEMPERATURE OF 1KG OF THE SUBSTANCE BY 1°C.