Unit 3 Science 9

In order to convert to Kelvin, you add ______ to the Celsius measurement.

• 372
• 273
• 237
• 732

What is 50 C in Kelvin?

• 223
• 323
• 100
• 50

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase

• Decrease

• Nothing

• Explosion!

What is the basis of kinetic-molecular theory?

• Molecules are in constant motion.
• Molecules only stop sometimes.
• Approximately half the molecules are stationary.
• It is impossible to tell if a molecule is moving or not.

True or false?  All gases expand to fill their container.

• True
• False

2. A change of state from a liquid to a solid is called....

• Melting
• Freezing
• Evaporation

Tags

NGSS.MS-PS1-4

5. What is it called when a solid turns directly into a gas?

• Sublimation
• Condensation
• Liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Change from gas to liquid...

• condensation
• evaporation
• expansion
• movement

Tags

NGSS.MS-PS1-4

What happens to particles when they are heated?

• They speed up and spread out
• They slow down and compress
• They stop moving
• They move closer together and speed up

Tags

NGSS.MS-PS1-4

What is deposition?

• Phase change from gas to solid
• phase change from liquid to solid
• Phase change from solid to gas
• Phase change from liquid to gas

Tags

NGSS.MS-PS1-4