ch.3 sec 1

Question 1

has a definite shape and volume

Answer 1

solid

Question 2

describe the particles in a solid

Answer 2

packed very closely together, tightly fixed in 1 position

Question 3

solids that are made up of crystals

Answer 3

crystalline solids

Question 4

how do crystalline solids melt

Answer 4

distinct temps

Question 5

what do particles form in many solids

Answer 5

regular repeating pattern

Question 6

what are examples of solids which form regular repeating patterns; Crystalline solids

Answer 6

salt, sugar, and snow

Question 7

the particles are not arranged in a regular pattern

Answer 7

amorphous solid

Question 8

at what point do amorphous solids melt

Answer 8

not distinct temps

Question 9

what are examples of amorphous solids

Answer 9

gels, glass, plastics, rubber,

Question 10

has a definite volume but no shape of its own

Answer 10

liquid

Question 11

describe particle movement in liquids

Answer 11

they move around 1 another freely

Question 12

what does going to a different state of matter require

Answer 12

thermal energy

Question 13

substance that flows can be liquid or gas

Answer 13

fluid

Question 14

an inward force/pull, among the molecules in a liquid that brings the molecules on the surface closer together

Answer 14

surface tension

Question 15

the attraction between molecules of the same substance

Answer 15

cohesion

Question 16

the attraction between molecules of different substances

Answer 16

adhesion

Question 17

what is an example of cohesion

Answer 17

water molecules attracting together

Question 18

what is an example of adhesion

Answer 18

glue, tape, water dripping on the side of a bucket

Question 19

a liquids resistence to flowing

Answer 19

viscosity

Question 20

what does a liquids viscosity depend on

Answer 20

shape and size of its particles and the attractions between the particles

Question 21

what does a high viscosity mean

Answer 21

flows slowly

Question 22

what does a low viscosity mean

Answer 22

flows fast

Question 23

what is an example of high viscosity liquids

Answer 23

honey

Question 24

what is an example of low viscosity liquids

Answer 24

water

Question 25

has neither definite shape nor a definite volume of its own

Answer 25

gas

Question 26

where do gas particles move

Answer 26

in all directions

Question 27

what do gas particles do when they move

Answer 27

spread apart, and fill up the space there is available

Question 28

force of its outward push divided by the area of the walls of the container

Answer 28

pressure of the gas

Question 29

formula for pressure

Answer 29

Pressure=Force/Area