AnswersFall 24 GSE Physical Science B ICTemperature and Thermal Energy

Temperature and Thermal Energy Answers

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1
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Which of these would have the lowest kinetic energy?

A
boiling water
B
ice water
C
refrigerated water
D
water at room temperature
2
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Water freezes at 0 [___].

A
degrees Celsius
B
degrees Fahrenheit
C
kelvins
3

Water freezes at 273 [___].

A
degrees Celsius
B
degrees Fahrenheit
C
kelvins
5

[___]

Answer:

Kelvin scale

7

Water freezes at 32 [___].

A
degrees Celsius
B
degrees Fahrenheit
C
kelvins
9

[___]

A
-305.5 K
B
-240.5 K
C
240.5 K
D
305.5 K
10

Explain what happens to the average kinetic energy, thermal energy, and temperature of a substance when the particles in the substance slow down.

Answer:

When the particles in a substance slow down, their average kinetic energy decreases. This reduction in kinetic energy leads to a decrease in the substance's total internal energy, or thermal energy. Consequently, because temperature is a measure of the average kinetic energy of the particles, the temperature of the substance also decreases.

11

Sample Response: The particles in a substance slow down when the average kinetic energy of the particles decreases. As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases. As the thermal energy of the substance decreases, the temperature decreases. What did you include in your response? Check all that apply.The particles in a substance slow down when the average kinetic energy of the particles decreases.As the average kinetic energy decreases,

A
The particles in a substance slow down when the average kinetic energy of the particles decreases.
B
As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases.
C
As the thermal energy of the substance decreases, the temperature decreases.

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