Phase Changes Freedom of Movement and Kinetic Energy

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

NGSS.MS-PS3-4

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

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

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

NGSS.MS-PS3-5

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-PS1-4

When a substance melts, the kinetic energy _____________.

• decreases
• stays the same
• increases
• decreases then increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the energy that an object has because it is moving?

• kinetic
• potential
• electric
• wind

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the average kinetic energy of a substance called?

• volume
• temperature
• pressure
• movement

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

Before: molecules move around each other, After: molecules move in place

• Before, the substance was a solid and later a liquid.
• Before,the substance was a gas, and later a liquid.
• Before, the substance was a liquid and later a solid.
• Before,the substance was a liquid, and later a gas.

Tags

NGSS.MS-PS1-4