Unit C1 Review

Between what two points is the most energy being added to the system

• A -B
• B-C
• C-D
• D-E

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What phase change is occurring at line segment B-C if the graph is exothermic?

• melting
• freezing
• boiling
• condensation

Tags

NGSS.MS-PS1-4

As substance goes from D to E what happens to the distance between the particles?

• particles get closer together
• particles disappear
• particles get far apart

Tags

NGSS.MS-PS1-4

At what temperature is this substance melting?

• 50C
• 100C
• 0C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

At point temperature does this substance finish melting?

• B
• C
• D
• E

Tags

NGSS.MS-PS1-4

The temperature at which a substance in the liquid state freezes is the same as the temperature at which the substance_________- 

• melts
• sublimes
• boils
• condenses

Tags

NGSS.MS-PS1-4

How long does it take this substance to change from a liquid to a gas?

• 1 minute
• 2 minutes
• 10 minutes
• 15 minutes

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

When molecules flow around each other, they are in this phase

• solid
• liquid
• gas
• plasma

Tags

NGSS.MS-PS1-4

The molecules in this picture are in what phase?

• solid
• liquid
• gas
• plasma

Tags

NGSS.MS-PS1-4