heating/cooling curves

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which segment is the kinetic energy remaining constant?

• A-B
• B-C
• C-D
• E-F

Tags

NGSS.MS-PS3-1

What state(s) of matter are present at D-E?

• Solid-liquid
• Liquid
• Liquid-gas
• Gas-Solid

Tags

NGSS.MS-PS1-4

Between which points is the average kinetic energy of the substance remaining constant?

• A-B only.

• A-B, C-D, E-F

• B-C only.

• B-C, D-E

Between which points is the temperature of the substance increasing?

• A-B only. 
• A-B, C-D, E-F
• B-C only. 
• B-C, D-E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What state of matter is segment 5?

• Solid
• Liquid
• Gas
• Plasma

Tags

NGSS.MS-PS1-4

Between which points is the substance changing state?

• A-B only. 
• A-B, C-D, E-F
• B-C only. 
• B-C, D-E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

True or false: melting and freezing occur at the same temperature!

• True

• False

A substance's heating curve is shown in the graph.  What is its boiling point?

• 100 C
• 60 C
• 80 C
• 20 C

Tags

NGSS.MS-PS1-4

Which of these conditions is always true for an exothermic process?

• They leave the surroundings feeling cold
• They release energy into the surroundings.
• They absorb energy from the surroundings
• The reactants gain energy as they form the products

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5