MidTerm Practice 2021 Heat and Heating/Cooling Curves

Between which points is the substance changing its state of matter?

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

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NGSS.MS-PS1-4

How many states of matter are present during line segment BC?

• One
• Two
• Three
• Depends on the temperature

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

The melting point of the sample is

• -60 ºC

• -100 ºC

• 60 ºC

• 100 ºC

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Given the heating curve of a solid being heated at a constant rate, what is the boiling point of this substance?

• 20°C

• 50°C

• 110°C

• 170°C

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NGSS.MS-PS1-4

Given the heating curve of water, what is happening to potential and kinetic energy during segment CD?

• the potential energy and kinetic energy both increase

• the potential energy increases while the kinetic energy decreases

• the potential energy is constant while the kinetic energy increases

• the potential energy increases while the kinetic energy is constant

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

From point A to point F, the sample is going through an __________ process by __________.

• exothermic, releasing heat to the surroundings

• exothermic, absorbing heat from the surroundings

• endothermic, releasing heat to the surroundings

• endothermic, absorbing heat from the surroundings

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Heat is being removed from a substance at a constant rate starting in the liquid phase at 75°C and ending at 15°C. During which time interval(s) is the kinetic energy constant? (check all that apply)

• 0-2 minutes

• 2-6 minutes

• 6-8 minutes

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NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

The measure of average kinetic energy of all the particles within an object is called ____________. 

• temperature
• conduction
• radiation
• heat 

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is NOT true about heat? 

• Heat moves from hot to cold
• Heat is a form of energy
• Heat cannot be transferred
• Heat makes molecules speed up 

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NGSS.HS-PS3-2

NGSS.HS-PS3-4

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22.0°C to 55.0°C, if the specific heat of aluminum is 0.903 J/g°C?

• 298 Joules

• 0.003 Joules

• 297 J/g°C

• 0.003 J/g°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4