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

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

• melting
• freezing
• boiling
• condensation

Tags

NGSS.MS-PS1-4

At point temperature does this substance finish melting?

• B
• C
• D
• E

Tags

NGSS.MS-PS1-4

What state/phase is the object likely from points A to B?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.HS-PS3-4

Phase change going from Liquid to Solid...

• Melting

• Freezing

• Condensation

• Sublimation

Tags

NGSS.MS-PS1-4

What is the goal for baby's average temperature?

• 36 C

• 37C

• 35 C

• 38 C

Tags

NGSS.HS-LS1-3

As the PCM loses energy, it's molecules experience a ________ in freedom of movement

• increase

• decrease

• no change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Insulating Materials have no effect on baby temperature

• True

• False

Tags

NGSS.MS-PS1-4

PCMs are substances that store and release large amounts of energy during the phase changes of melting and freezing

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which PCM has the longest temperature plateau?

• A

• B

• C

• C and B

Tags

NGSS.MS-PS1-4