AnswersCrowley Credit Recovery Physics AConservation of Energy

Lesson 3: Temperature and Heat Answers

9 verified answers
1
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Which best compares kinetic energy and temperature?

A
Kinetic energy is energy of motion, while temperature is a measure of that energy in substances.
B
Temperature is energy of motion, while kinetic energy is a measure of that energy in substances.
C
Kinetic energy is internal transferable energy, while temperature is a measure of that energy in substances.
D
Temperature is internal transferable energy, while kinetic energy is a measure of that energy in substances.
2
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Nya has a cup of hot tea that she lets cool down for several minutes. What effect does cooling have on the tea?

A
Its particles have less kinetic energy.
B
Its particles have more kinetic energy.
C
Its specific heat increases.
D
Its specific heat decreases.
3

Ed records the temperature of two pots of water. The pots are the same size and material. Pot X has a temperature of 56 degrees Fahrenheit, and pot Y has a temperature of 49 degrees Fahrenheit.

A
The water in pot X has more kinetic energy than the water in pot Y.
B
The water in pot Y has more kinetic energy that the water in pot X.
C
The water in pot X has a higher specific heat than the water in pot Y.
D
The water in pot Y has a higher specific heat than the water in pot X.
4

Zoe finds that the temperature of a substance is 12 degrees Celsius. What does this tell Zoe about the substance?

A
Its internal energy is less than 12 degrees Celsius.
B
Its average kinetic energy is 12 on the Celsius scale.
C
It has a potential energy of 12 degrees Celsius.
D
It has a specific heat of 12 on the Celsius scale.
5

Water has a specific heat of 4.186 J/g°C. How much heat is required to increase 10.0 g of water from 25.0°C to 30.0°C?

A
5.0 J
B
21 J
C
42 J
D
209 J
6

Which best compares kinetic energy and temperature?

A
Kinetic energy is energy of motion, while temperature is a measure of that energy in substances.
B
Temperature is energy of motion, while kinetic energy is a measure of that energy in substances.
C
Kinetic energy is internal transferable energy, while temperature is a measure of that energy in substances.
D
Temperature is internal transferable energy, while kinetic energy is a measure of that energy in substances.
7

Nya has a cup of hot tea that she lets cool down for several minutes. What effect does cooling have on the tea?

A
Its particles have less kinetic energy.
B
Its particles have more kinetic energy.
C
Its specific heat increases.
D
Its specific heat decreases.
8

The chart shows specific heat data for four substances.

Question illustration
A
Substance X has a lower atomic mass than substance W.
B
Substance Y has a higher atomic mass than substance X.
C
Substance Y has more atoms per gram than substance W.
D
Substance Z has fewer atoms per gram than substance X.
9

Val warms up some soup on the stove. Assuming no phase change has occurred, what effect does warming have on the soup?

A
Its particles have less kinetic energy.
B
Its particles have more kinetic energy.
C
Its specific heat increases.
D
Its specific heat decreases.
10

Jared made a study chart about heat, temperature, kinetic energy, and thermal energy.

Question illustration
A
Add “potential energy” to the description of temperature.
B
Switch the term “heat” with the term “thermal energy.”
C
Change kinetic energy description from “energy of motion” to “stored energy.”
D
Replace the term “temperature” with “internal energy.”
11

Water has a specific heat of 4.186 J/g°C, and ethanol has a specific heat of 2.450 J/g°C. Based on this information, which best compares water and ethanol?

A
It requires more heat to raise the temperature of a gram of ethanol by 1°C.
B
There are more molecules in a gram of water.
C
Ethanol has a lower formula mass.
D
Water has more protons and neutrons in its nuclei.
12

In the heat equation, what does c represent?

A
heat required to raise the temperature
B
specific heat of the substance
C
mass of the substance
D
change in temperature
13

Temperature is a measure of the average energy of particles in a substance.

Answer not available
14

Val warms up some soup on the stove. Assuming no phase change has occurred, what effect does warming have on the soup?

A
Its particles have less kinetic energy.
B
Its particles have more kinetic energy.
C
Its specific heat increases.
D
Its specific heat decreases.
15

Water has a specific heat of 4.186 J/g°C. How much heat is required to increase 10.0 g of water from 25.0°C to 30.0°C?

A
5.0 J
B
21 J
C
42 J
D
209 J
16

In the heat equation, what does c represent?

A
heat required to raise the temperature
B
specific heat of the substance
C
mass of the substance
D
change in temperature
17

Copper has a specific heat of 0.386 J/g°C. How much heat is required to increase 5.00 g of copper from 0.0°C to 10.0°C?

A
3.86 J
B
5.00 J
C
10.0 J
D
19.3 J
18

It requires 2,500 joules to raise a certain amount of water (c = 4.186 J/g°C) from 20.0°C to 60.0°C.

A
15 g
B
40 g
C
63 g
D
80 g

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