2. Shining surfaces are

poor absorbers and poor radiators of heat

3. A piece of metal is heated, then submerged in cool water. Which statement below describes what happens?

The temperature of the water will increase and the temperature of the metal will decrease

a. The temperature of the metal will increase.

b. The temperature of the water will increase.

c. The temperature of the water will decrease.

4. How does a calorie compare to a joule?

b. A calorie is larger than a joule.

a. A calorie is smaller than a joule.

c. A calorie is equal to a joule.

5. If heat is released by a chemical system, an equal amount of heat will be ____.

a. absorbed by the surroundings

c. released by the surroundings

-When a thermometer is cooled, the red liquid inside the thermometer moves down. This is mainly because:

c) The glass of the thermometer gets cold

b) Water molecules are in motion

7-How can you describe the specific heat of olive oil if it takes approximately 420 J of heat to raise the temperature of 7 g of olive oil by 30°C?

b. less than the specific heat of water

a. greater than the specific heat of water

c. equal to the specific heat of water

Senior One Quiz No.1

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| By Assisstant Ayman

Assisstant Ayman

Community Contributor

Quizzes Created: 2 | Total Attempts: 326

Questions: 10 | Attempts: 170 | Updated: Mar 17, 2023

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This quiz is on - systems- specific heat

Questions and Answers

1.

. The property of matter to increase in size on heating is called
- A.
  
  Thermal work
- B.
  
  Thermal energy
- C.
  
  Thermal expansion
- D.
  
  Thermal contraction
Correct Answer
C. Thermal expansion

Explanation
Thermal expansion refers to the property of matter to increase in size when heated. When a substance is heated, its particles gain energy and move more rapidly, causing them to spread out and occupy a larger volume. This phenomenon is observed in various materials, including solids, liquids, and gases. Thermal expansion is utilized in various applications, such as in the design of bridges and buildings to account for changes in size due to temperature fluctuations.

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2.

2. Shining surfaces are
- A.
  
  good absorbers of heat
- B.
  
  Good radiators of heat
- C.
  
  Poor absorbers and poor radiators of heat
Correct Answer
C. Poor absorbers and poor radiators of heat

Explanation
Shining surfaces, such as polished metals, have high reflectivity, meaning they reflect most of the incoming heat radiation rather than absorbing it. This makes them poor absorbers of heat. Additionally, their smooth surfaces also inhibit the emission of heat radiation, making them poor radiators of heat. Therefore, shining surfaces are both poor absorbers and poor radiators of heat.

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3.

3. A piece of metal is heated, then submerged in cool water. Which statement below describes what happens?
- A.
  
  a. The temperature of the metal will increase.
- B.
  
  b. The temperature of the water will increase.
- C.
  
  c. The temperature of the water will decrease.
- D.
  
  The temperature of the water will increase and the temperature of the metal will decrease
Correct Answer
D. The temperature of the water will increase and the temperature of the metal will decrease

Explanation
When a piece of metal is heated and then submerged in cool water, heat is transferred from the metal to the water. This causes the temperature of the water to increase as it absorbs the heat from the metal. At the same time, the metal loses heat to the water, causing its temperature to decrease. Therefore, the correct answer is that the temperature of the water will increase and the temperature of the metal will decrease.

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4.

4. How does a calorie compare to a joule?
- A.
  
  a. A calorie is smaller than a joule.
- B.
  
  b. A calorie is larger than a joule.
- C.
  
  c. A calorie is equal to a joule.
Correct Answer
B. b. A calorie is larger than a joule.

Explanation
A calorie is larger than a joule because a calorie is a unit of energy commonly used in the field of nutrition, while a joule is the standard unit of energy in the International System of Units (SI). One calorie is equal to approximately 4.184 joules. Therefore, a calorie contains more energy than a joule.

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2
0
5.

5. If heat is released by a chemical system, an equal amount of heat will be ____.
- A.
  
  a. absorbed by the surroundings
- B.
  
  b. absorbed by the universe
- C.
  
  c. released by the surroundings
Correct Answer
A. a. absorbed by the surroundings

Explanation
When heat is released by a chemical system, it means that the system is losing energy in the form of heat. According to the law of conservation of energy, energy cannot be created or destroyed, only transferred or transformed. Therefore, if the chemical system is releasing heat, an equal amount of heat must be absorbed by the surroundings in order to maintain the balance of energy. This is why option a, "absorbed by the surroundings," is the correct answer.

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1
0
6.

-When a thermometer is cooled, the red liquid inside the thermometer moves down. This is mainly because:
- A.
  
  a) Water molecules are warm
- B.
  
  b) Water molecules are in motion
- C.
  
  C) The glass of the thermometer gets cold
Correct Answer
C. C) The glass of the thermometer gets cold

Explanation
When a thermometer is cooled, the red liquid inside moves down because the glass of the thermometer gets cold. As the glass cools, it contracts, causing the volume inside the thermometer to decrease. This decrease in volume pushes the liquid down, resulting in the movement of the red liquid. The cooling of the glass is the main reason behind the downward movement of the liquid in a thermometer.

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1
0
7.

The quantity of heat required to change the temperature of 1 g of a water by 1 °C is defined as ____.
- A.
  
  Joule
- B.
  
  Calorie
- C.
  
  Specific heat
Correct Answer
B. Calorie

Explanation
The quantity of heat required to change the temperature of 1 g of water by 1 °C is defined as a calorie. A calorie is a unit of energy commonly used in the field of nutrition and is defined as the amount of heat energy required to raise the temperature of 1 gram of water by 1 degree Celsius. It is often used to measure the energy content of food and beverages.

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1
0
8.

7-How can you describe the specific heat of olive oil if it takes approximately 420 J of heat to raise the temperature of 7 g of olive oil by 30°C?
- A.
  
  a. greater than the specific heat of water
- B.
  
  b. less than the specific heat of water
- C.
  
  C. equal to the specific heat of water
Correct Answer
B. b. less than the specific heat of water

Explanation
The specific heat of a substance is a measure of how much heat energy is required to raise the temperature of a given amount of the substance by a certain amount. In this case, it takes 420 J of heat to raise the temperature of 7 g of olive oil by 30°C. This indicates that olive oil requires less heat energy compared to water to achieve the same temperature change. Therefore, the specific heat of olive oil is less than the specific heat of water.

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1
0
9.

How many joules are in 148 calories? (1 cal = 4.18 J)
- A.
  
  619
- B.
  
  6.61
- C.
  
  3
Correct Answer
A. 619

Explanation
To convert calories to joules, we need to multiply the number of calories by the conversion factor of 4.18 (1 cal = 4.18 J). In this case, we have 148 calories, so multiplying it by 4.18 gives us 617.44 joules. Since the question asks for the number of joules in 148 calories, the correct answer is 619.

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1
0
10.

If 25 J are required to change the temperature of 5.0 g of substance A by 2.0°C, what is the specific heat of substance A?
- A.
  
  2.5 J/g°C
- B.
  
  250 J/g°C
- C.
  
  1 j/g c
Correct Answer
A. 2.5 J/g°C

Explanation
The specific heat of a substance is the amount of heat energy required to raise the temperature of 1 gram of the substance by 1 degree Celsius. In this question, 25 J of heat energy is required to raise the temperature of 5.0 g of substance A by 2.0 degrees Celsius. To find the specific heat, we divide the amount of heat energy (25 J) by the mass of the substance (5.0 g) and the change in temperature (2.0 degrees Celsius). This gives us a specific heat of 2.5 J/g°C, which means that it takes 2.5 Joules of energy to raise the temperature of 1 gram of substance A by 1 degree Celsius.

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Current Version
Mar 17, 2023

Quiz Edited by
ProProfs Editorial Team
Feb 11, 2019

Quiz Created by
Assisstant Ayman

Senior One Quiz No.1

. The property of matter to increase in size on heating is called

2. Shining surfaces are

3. A piece of metal is heated, then submerged in cool water. Which statement below describes what happens?

4. How does a calorie compare to a joule?

5. If heat is released by a chemical system, an equal amount of heat will be ____.

-When a thermometer is cooled, the red liquid inside the thermometer moves down. This is mainly because:

The quantity of heat required to change the temperature of 1 g of a water by 1 °C is defined as ____.

7-How can you describe the specific heat of olive oil if it takes approximately 420 J of heat to raise the temperature of 7 g of olive oil by 30°C?

How many joules are in 148 calories? (1 cal = 4.18 J)

If 25 J are required to change the temperature of 5.0 g of substance A by 2.0°C, what is the specific heat of substance A?