Energy and Change of State

How does the addition of a solute, such as salt, affect the freezing point of water?

• It increases the freezing point.

• It decreases the freezing point.

• It does not affect the freezing point.

• It causes immediate freezing.

Tags

NGSS.MS-PS1-2

How does water change state?

• Kinetic energy is added or removed to cause water to change from one state to another.

• Thermal energy is added or removed to cause water to change from one state to another.

• Hydro energy is added or removed to cause water to change from one state to another.

• Wind energy is added or removed to cause water to change from one state to another.

Tags

NGSS.MS-PS1-4

At higher temperatures, gases have --------------energy.

• higher

• lower

• the same

• denser

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Condensation is a change in substance from a ---------- to a ---------------

• solid to a gas

• liquid to a gas

• gas to a liquid

• solid to a liquid

Tags

NGSS.MS-PS1-4

When a liquid turns into a solid, which of the following also changes?

• chemical composition

• mass

• size of the molecules

• energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In which state of matter would the molecules be the farthest apart?

• a cold solid

• a warm solid

• a liquid

• a gas

When a substance loses heat energy, its molecules ...................................

• slow down

• speed up

• are not affected

• break apart

Tags

NGSS.MS-PS1-4

Which of the following is true?

• When thermal energy is added to matter, its kinetic energy also increases.

• When kinetic energy is added to matter, its thermal energy also increases.

• When thermal energy is added to matter, its hydro energy also increases.

• When kinetic energy is added to matter, its hydro energy also increases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Evaporation occurs when a liquid turns into a gas.

• solid

• gas

• plasma

• superfluid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Sublimation is the process by which a substance changes from a

.......................... to ...........................

• solid, gas

• liquid, gas

• gas, solid

• solid, plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4