KMT and Phase Changes

You have dropped your popsicle and are watching it become a LIQUID. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule MOVEMENT has changed?

• The PHASE CHANGE that has occurred is CONDENSATION and the molecule MOVEMENT has become FASTER.

• The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become SLOWER.

• The PHASE CHANGE that has occurred is MELTNG and the molecule MOVEMENT has become FASTER.

Tags

NGSS.MS-PS1-4

You are drinking a cold drink on a hot day when you notice LIQUID water has collected on the can. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule ARRANGEMENT has changed?

• The PHASE CHANGE that has occurred is CONDENSATION and the molecule ARRANGEMENT has become CLOSER.

• The PHASE CHANGE that has occurred is FREEZING and the molecule ARRANGEMENT has become CLOSER.

• The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become FASTER.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

When a substance melts, the kinetic energy _____________.

• decreases

• stays the same

• increases

• decreases then increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

All phase changes (changing states) requires energy to be added or taken away.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Study the diagram below. The material begins to condense at point:

• 1

• 2

• 3

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

If you have a liquid that changes to a gas, explain it's freedom of movement in both phases.

• molecules move away from each other, then around each other

• molecules move in place, then around each other

• molecules move around each other, then away from each other

• molecules move around each other, then in place

Tags

NGSS.MS-PS1-4

What happens to molecules when kinetic energy increases?

• they move slower

• they move faster

• they get heavier

• it depends on the types of molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which are the 3 basic states of matter?

• Solid, plasma, gas

• Solid, liquid, gas

• Gas, gasoline, natural gas

• Colloids, liquid, gas

Tags

NGSS.MS-PS1-4

Which particles are moving the fastest? Those in a solid, a liquid, or a gas?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4