Heating and cooling curves

In which region(s) does temperature remain constant?

• Region 1, 3, & 5
• Region 2 & 4
• Region 1 only
• Region 1 & 2

Tags

NGSS.MS-PS1-4

In which region(s) does temperature increase?

• Region 1, 3, & 5
• Region 2 & 4
• Region 1 only
• Region 1 & 2

Tags

NGSS.MS-ESS2-6

In which region(s) of the graph does a phase change occur?

• Region 1, 3, & 5
• Region 2 & 4
• Region 1 only
• Region 1 & 2

Tags

NGSS.MS-PS1-4

In which region(s) of the graph would the substance only be in one phase?

• Region 1, 3, & 5
• Region 2 & 4
• Region 1 only
• Region 1 & 2

Tags

NGSS.MS-PS1-4

In which region(s) of the graph would the substance be a solid only?

• Region 1
• Region 2
• Region 3
• Region 4

Tags

NGSS.MS-PS1-4

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

Which process takes the longest to occur?

• melting
• boiling
• freezing
• heating the solid

Tags

NGSS.MS-PS1-4

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