Mod Cem: Unit 2 - Particles in Motion Test Review (in class)

When you heat a gas, its thermal energy

• increases

• decreases

• remains the same

• varies with pressure

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

Gases exert pressure on their containers due to

• collisions between particles

• collisions between particles and the container walls

• the space between molecules

• the type of manometer used

Tags

NGSS.HS-PS2-1

If the column of mercury in a barometer or manometer is increasing, what can you say about the air pressure around it?

• going up

• going down

• staying constant

• not enough information to answer

Which relationship below is represented by the graph shown?

• P-n

• P-V

• P-T

• P-P

Which relationship below is represented by the graph shown (pick all that apply)?

• P-n

• P-T

• P-V

• P-P

Which statement is true regarding the relationships represented by the graph shown?

• Line B shows the relationship between volume and temperature

• Line A shows the relationship between pressure and temperature (in Kelvin)

• Line C shows the relationship between pressure and volume

• Line A shows the relationship between pressure and temperature (in Celsius)

Why does the mercury in a thermometer travel upwards in warmer water?

• When particles gain energy they expand and move farther away from one another.

• When particles gain energy they expand and move closer to one another.

• When particles gain energy they contract and move farther away from one another.

• When particles gain energy they contract and move closer to one another.

Tags

NGSS.MS-PS1-4

The cube at left shows a gas at 45^oC (318 K). Which of the labelled cubes best represents the same gas at 20^oC (293 K)?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-4

How do I know the gas particles in the balloon at right have more energy than those in the cylinder in the middle?

• Lines are longer coming off the particles in the balloon at right

• Lines are shorter coming off the particles in the balloon at right

• Lines are longer coming off the particles in the cylinder in the middle

• There are fewer particles in the balloon at right

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What would happen to the pressure of this gas if the number of particles was cut in half?

• pressure would increase

• pressure would decrease

• nothing would happen

• it would depend on the volume of the container