!Unit 1 Test!

Question 1

Why is it that when we climb higher on Mount Fuji, the air begins to become colder and thinner?

Answer 1

B/c when we go higher altitude increases which means the amount of gas molecules in the air decreases making it difficult to absorb heat

Question 2

If the air in the flask is heated, the volume of the air will _________ and the ballon will ______.

Answer 2

Increase/Expand

Question 3

If the air in the flask is cooled, the volume of the air will ________ and the balloon will _________.

Answer 3

Decrease/Shrink

Question 4

What happened to the balloon as the flask was first heated and then cooled?

Answer 4

The balloon expanded when the flask was heated and then shrunk when it was cooled

Question 5

What determines the phase of matter?

Answer 5

The motion and speed of particles

Question 6

What is matter made of?

Answer 6

Particles

Question 7

What is plasma?

Answer 7

Like a gas, plasma has no shape or volume

Question 8

What are the particles in plasma like?

Answer 8

They are broken down

Question 9

How is plasma formed?

Answer 9

When electricity is passed through gas

Question 10

True or False: Plasma can glow

Answer 10

True

Question 11

The particles within a solid are very close together and vibrate in a _________ position.

Answer 11

Fixed

Question 12

Liquids have a fixed volume but have a _________ shape.

Answer 12

Variable

Question 13

Gas particles are in constant motion at _________ speed, and, therefore, they are spaced far apart.

Answer 13

High

Question 14

Gases have a __________ shape and volume because they can be compressed under pressure.

Answer 14

Variable

Question 15

Which objects are the easiest to pull apart: wood block, plastic spoon, paper, paper clip, or clay?

Answer 15

Sheet of paper and clay

Question 16

Which objects were the hardest to pull apart: wood block, plastic spoon, paper clip, clay, or sheet of paper?

Answer 16

Wood block, paper clip, and plastic spoon

Question 17

What is holding the particles in the objects together?

Answer 17

Particle attraction

Question 18

Why are the glass, water, and air in different states of matter at the same temperature?

Answer 18

B/c they have different levels of particle attraction

Question 19

What increases as well when the temperature increases in a solid, liquid and gas?

Answer 19

The attraction between particles

Question 20

Pressure is the force exerted by a substance on its container. Of the three states of matter - solid, liquid, and gas, which one would exert the highest pressure on its container? Why?

Answer 20

Gas b/c the particles in the substance are constantly moving freely