7.4

Question 1

Kinetic energy

Answer 1

Energy an object has due to its motion

Question 2

Kinetic in greek means _________

Answer 2

“Move”

Question 3

Knetic theory

Answer 3

Explains how particles behave

1) all matter is composed of particles
2) particles are in constant random motion
3) particles collide with eachother

Question 4

Solid

Answer 4

Definite shape and volume. Particles are closely packed in geometric arangement

Question 5

Liquid

Answer 5

Indefinite shape and definite volume. Particles have more space and slide past eachother

Question 6

Gas

Answer 6

Indefinite shape and volume. Particles have energy to spread out evenly in container

Question 7

Plasma

Answer 7

High temperature gas. Particles positively and negatively charged

Question 8

Temperature

Answer 8

Measure of how hot or cold something is compared to a reference point

Question 9

The state of a sample of matter depends on ______

Answer 9

Temperature

Question 10

Temperature is

Answer 10

• related to average kinetic energy of an object
• when the temperature increases, matter expands
• decreases, matter contracts

Question 11

What is the exception

Answer 11

WATER