Lesson 1: Matter

Question 1

what is matter

Answer 1

anything that occupies space and has mass

Question 2

what is matter made out of

Answer 2

atoms

Question 3

what is something unique that atoms have

Answer 3

properties

Question 4

which two people believed that nature consisted of two things

Answer 4

Leucippus & Democritus

Question 5

what two things does nature consist of

Answer 5

atoms and the void around them

Question 5

can atoms be physically divided

Answer 5

no

Question 6

can atoms be geometrically divided

Answer 6

yes

Question 7

what is the greek word for indivisible

Answer 7

atomos

Question 8

what did aristotle say about what matter consists of

Answer 8

matter consists of the four basic elements: fire earth wind and water

Question 9

who presented evidence that all matter is made of atoms

Answer 9

John Dalton

Question 10

why are heat and light not matter

Answer 10

because energy (heat and light) does not have mass, it describes the ability to do work

Question 11

can be observed without changing into another substance

Answer 11

Physical Properties

Question 12

this is the ability to change into a different substance

Answer 12

Chemical Properties

Question 13

three states of matter

Answer 13

solid liquid gas

Question 14

what is this theory called: all matter are made up of tiny particles known as atoms

Answer 14

Kinetic Molecular Theory of Matter

Question 15

under the Kinetic Molecular Theory of Matter: how do particles move?

Answer 15

constant, random motion

Question 16

particles increase in _____ as they increase in motion

Answer 16

kinetic energy

Question 17

what is the attractive force that holds the particles together

Answer 17

Intramolecular forces

Question 18

what does intra mean

Answer 18

within

Question 19

forces of attraction

Answer 19

Intermolecular forces

Question 20

what does inter mean

Answer 20

between and among

Question 21

can hold together identical and non-identical particles

Answer 21

intermolecular forces

Question 22

has a definite shape and volume, difficult to compress these particles

Answer 22

solid

Question 23

ratio of mass per unit volume

Answer 23

Desnity

Question 24

what type of solid is this: a solid whose atoms ions and molecules are arranged in an orderly, geometric, three dimensional structure

Answer 24

Crystalline Solids

Question 25

what type of solid is this: consists of positive metal ions surrounded by a sea of mobile electrons

Answer 25

Metallic Solids

Question 26

what type of solid is this: not arranged in a regular, repeating pattern

Answer 26

Amorphous solids

Question 27

has a definite volume but takes the shape of the container

Answer 27

liquid

Question 28

why do liquids flow easily

Answer 28

its particles have enough space and have less attractive force

Question 29

this is the ability to flow, gases and liquids are classified under this

Answer 29

Fluidity

Question 30

measure of the resistance of a liquid to flow

Answer 30

Viscosity

Question 31

what energy increases when the temperature increases

Answer 31

Kinetic Energy

Question 32

the energy required to increase the surface area of a liquid by a given amount

Answer 32

Surface Tension

Question 33

a measure of the inward pull by particles in the interior

Answer 33

Surface Tension

Question 34

in capillary action, what are the two forces at work

Answer 34

cohesion and adhesion

Question 35

this is the force of attraction between identical molecules

Answer 35

cohesion

Question 36

this is the force of attraction between different molecules

Answer 36

adhesion

Question 37

in liquids, the greater the weight means the greater the _______

Answer 37

density

Question 38

takes the volume and shape of the container

Answer 38

gas

Question 39

what is the movement of the molecules that exerts a force over the area

Answer 39

pressure

Question 40

what is the instrument called to measure pressure

Answer 40

barometer

Question 41

what is the unit that measures pressure

Answer 41

The SI unit pressure is Pascal (Pa)

Question 42

what are the other units that measures pressure

Answer 42

atmosphere (atm) and torr im going crazy please help me

Question 43

an increase in temperature causes a gas to ______

Answer 43

expand

Question 44

what is the fourth state of matter

Answer 44

plasma

Question 45

what type of matter is so hot that the electrons are ripped away from the atoms

Answer 45

superheated matter

Question 46

plasma is just ______ gas

Answer 46

ionized gas

Question 47

plasma is _____ly charged

Answer 47

positively

Question 48

plasma has an _______ charge

Answer 48

electric

Question 49

plasma has an electric charge, which means they are affected by

Answer 49

electrical and magnetic fields

Question 50

what percent of matter in the universe is considered plasma

Answer 50

98%