Chapter 15 & 16

Question 1

Kinetic Theory of Matter

Answer 1

Tiny particles in

motion making up all matter.

Question 2

Crystals

Answer 2

particles arranged in repeating geometric patterns

Question 3

Archimedes’ Principle

Answer 3

explains the buoyant force on an object submerged in fluid

Question 4

buoyant force

Answer 4

determines whether an object will sink or float in a fluid

Question 5

solid

Answer 5

state of matter with definite shape & definite volume

Question 6

amorphous solid

Answer 6

solid which is not made of crystals

Question 7

Bernoulli’s Principle

Answer 7

explains how airplanes fly

Question 8

steam

Answer 8

water vapor

Question 9

thermal expansion

Answer 9

matter expands when it gets hotter and contracts when it cools

Question 10

Pascal’s Principle

Answer 10

pressure applied to a fluid is transmitted throughout the fluid

Question 11

liquid

Answer 11

state of matter with not definite shape but with definite volume

Question 12

gas

Answer 12

state of matted with no definite shape of volume

Question 13

ice

Answer 13

water in the solid state

Question 14

absolute zero

Answer 14

point at which all particle motion stops

Question 15

buoyancy

Answer 15

ability of a fluid to exert an upward force on an object immersed in it

Question 16

pressure

Answer 16

force per unit area

Question 17

pascal

Answer 17

SI unit of measure

Question 18

Matter is composed of

Answer 18

Particles

Question 19

heterogeneous

Answer 19

mixture has different materials that can be easily distinguished.

Question 20

solution

Answer 20

a homogeneous mixture with particles so small they can not be seen without a microscope

Question 21

suspension

Answer 21

a liquid heterogeneous mixture in which visible particles settle

Question 22

compound

Answer 22

material made from atoms of two or more combined elements

Question 23

element

Answer 23

if all atoms in a sample of matter are alike, that kind of matter is an element

Question 24

homogeneous

Answer 24

a mixture has two or more substances blended evenly throughout

Question 25

Tyndall

Answer 25

the scattering of light by colloids and suspensions is the tyndall effect

Question 26

physical properties

Answer 26

size, shape, and melting point

Question 27

chemical change

Answer 27

a burnt object has undergone a chemical change

Question 28

Law of Conservation of Mass

Answer 28

states that mass is not gained or lost during chemical changes

Question 29

substance

Answer 29

element or compound

Question 30

colloid

Answer 30

heterogeneous mixture with larger particles that never sett

Question 31

appearance

Answer 31

physical description of a substance

Question 32

behavior

Answer 32

how a substance acts; for example, magnetism, viscosity, ductility

Question 33

distillation

Answer 33

process for separating a mixture by evaporating a liquid and condensing its vapor.

Question 34

air pressure at sea level

Answer 34

101.3 kilopascals

Question 35

most common state of matter

Answer 35

plasma

Question 36

Plasma

Answer 36

Gaslike mixture of charged particles