Phase Changes, Freedom of Movement and Kinetic Energy

How do the molecules in a gas behave?

• move in place

• move around each other

• move away from each other

• do not move

Tags

NGSS.MS-PS1-4

How do the molecules in a liquid behave

• do not move

• move away from each other

• move in place

• move around each other

A substance's molecules are moving around each other. What will happen if you transfer energy into the substance and cause a phase change?

• molecules will move slower, substance will be a solid

• molecules will move slower, substance will be a liquid

• molecules will move faster, substance will be a liquid

• molecules will move faster, substance will be a gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you transfer energy into a substance how will the molecules change?

• molecules will move faster

• molecules will move slower

• molecules will stop moving

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles are constantly moving. They have ________________.

• Matter

• Phase Change

• Kinetic Energy

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

A chef finds a sealed container consisting of an ingredient that goes into his restaurant’s secret sauce.

The ingredient’s molecules are moving in place.

What will happen if the chef causes the ingredient to change phase by transferring energy into it?

After the phase change, the ingredient’s molecules will move . . .

• faster, and the ingredient will be a solid.

•  faster, and the ingredient will be a liquid.

•  slower, and the ingredient will be a solid.

•  slower, and the ingredient will be a liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles in motion possess which form of energy that is directly related to their velocity?

• Matter

• Phase Change

• Kinetic Energy

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following happens as the phase changes from A --> B--> C

• the molecules gain energy

• the molecules move farther apart

• the molecules lose energy

• the molecules move faster

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When the kinetic energy of molecules decreases significantly, what is the most likely effect on their motion?

• They move considerably slower.

• They move considerably faster.

• They become significantly heavier.

• The effect varies depending on the molecular structure.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Particles in motion possess which form of energy that is directly related to their velocity (speed)?

• Matter

• Phase Change

• Kinetic Energy

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1