Matter Phase Changes And Density

Question 1

What are the four/three states of matter?

Answer 1

1. Particle arrangement
2. Particle energy
3. particle to particle distance

Question 2

Solids?

Answer 2

• particles of solids are tightly packed vibrating in a fixing position
• solids have definite shape and volume

Question 3

Liquids?

Answer 3

• particles tightly packed together but can slide

- liquids have an indefinite shape and volume

Question 4

Gas?

Answer 4

• particles very far apart and move freely
• have indefinite shape and volume
• no free surfaces

Question 5

Plasma?

Answer 5

• ionized gas
• charged atoms
• very good conducted of electricity and affected by magnetic fields
• indefinite shape and volume

Question 6

S>L?

Answer 6

Melting

Question 7

L>G

Answer 7

Evaporation

Question 8

G>L?

Answer 8

Condensation

Question 9

L>S?

Answer 9

Freezing

Question 10

S>G?

Answer 10

Sublimation

Question 11

G>S

Answer 11

Deposition

Question 12

Flat line=?

Answer 12

Phase change

Question 13

Density formula?

Answer 13

D= m
–
v

Question 14

What does the density of an object tell you?

Answer 14

How much of the object will be submerged under water

Question 15

What is water’a density?

Answer 15

1

Question 16

If an objects density is less than one the object will ___

Answer 16

Float

Question 17

If the objects density is greater than one the object will ____

Answer 17

Sink

Question 18

Buoyant force?

Answer 18

Upward force on an object to float or rise in a liquid

Question 19

Heat of fusion?

Answer 19

Amount of energy needed for phase change

Question 20

Heat of vaporization

Answer 20

Amount of energy needed to change a phase from liquid to gas

Question 21

Taking away heat=?

Answer 21

Exothermic

Question 22

Adding heat=?

Answer 22

Endothermic

Question 23

What is matter?

Answer 23

Anything that has mass and volume