Phase Change Review

Between which points is the temperature of the substance remaining constant?

• A-B only

• A-B, C-D, and E-F

• B-C only

• B-C and D-E

Tags

NGSS.MS-PS1-4

What happens to the kinetic energy of particles during a phase change?

• Particle speed increases

• Particle speed decreases

• Particle speed remains constant (with and average speed)

• Particles speed is always changing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The melting point of the sample is

• -60 ºC

• 20 ºC

• 60 ºC

• 100 ºC

Tags

NGSS.MS-PS1-4

At which points is the kinetic energy of the particles changing?

• A, C and E

• B and D

• E

• A, B, C, D and E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A measure of the average kinetic energy of the particles in an object is called

• Heat

• Temperature

• Kinetic energy

• Enthalpy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which region(s) does temperature increase?

• Region C only

• Regions B and D

• Regions A, C, and E

• Regions A and B

Tags

NGSS.MS-PS1-4

Describe the substance at letter A.

• Solid

• Liquid

• Melting

• Evaporating

Tags

NGSS.MS-PS1-4

NaCl was heated starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

• 0°C

• 801°C

• 1000°C

• 1465°C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

NaCl was heated starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

• 0°C

• 801°C

• 1000°C

• 1465°C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Describe the substance at letters D.

• Gas

• Liquid

• Melting

• Evaporating

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4