Physics Unit 10 Review: Thermodynamics

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

• thermal energy

• conduction

• convection

• temperature

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

At what temperature do nitrogen molecules move fastest?

• 350 K
• 300 K
• 250 K
• 200 K

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NGSS.MS-PS1-4

Which will heat up faster?

• copper

• granite

• iron

• basalt

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NGSS.MS-PS1-4

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NGSS.MS-PS3-4

Which of the following best explains why the sand at the beach is hotter than the water?

• Sand has a higher specific heat than water.

• Sand has a lower specific heat than water.

• There is more water than sand at the beach.

• There is more sand than water at the beach.

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NGSS.MS-PS3-5

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?

• Large cup (Trenta)
• Small cup (Tall)
• Venti
• All three are the same temperature so they have same thermal energy

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NGSS.MS-PS3-4

A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?

• 25 g
• 30 g
• 20 g
• 50 g

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NGSS.MS-PS3-4

What is the variable for specific heat capacity?

• C in q=mC∆T

• S in ∆S = Q / T

• U in ∆U = Q - W

• ∆H in Q=m∆H

After cooking an egg in boiling water, you cool the egg by putting it into a bowl of cold water. Which of the following explains the egg’s cooling process?

• Hot water moves from the egg to the water.

• Cold water moves into the egg.

• Energy is transferred from the water to the egg.

• Energy is transferred from the egg to the water.

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees Celsius. Which cup has the MOST heat energy?

• Large cup (Trenta)

• Small cup (Tall)

• Medium cup (Venti)

• All three are the same temperature so they have the same thermal energy

Tags

NGSS.MS-PS1-4

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

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NGSS.MS-PS1-4