Senior One Quiz No.1

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  • 1/10 Questions

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

    •  a. The temperature of the metal will increase.
    •  b. The temperature of the water will increase.
    •  c. The temperature of the water will decrease.
    •  The temperature of the water will increase and the temperature of the metal will decrease
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About This Quiz

Senior One Quiz No. 1 covers fundamental physics concepts, focusing on properties of matter, thermal dynamics, and energy transformations, suitable for introductory physics education.

Senior One Quiz No.1 - Quiz

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  • 2. 

      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?

    •  2.5 J/g°C

    •      250 J/g°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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  • 3. 

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

    • 619 

    • 6.61

    • 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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  • 4. 

     4. How does a calorie compare to a joule?

    •  a. A calorie is smaller than a joule.

    •  b. A calorie is larger than a joule.

    •  c. A calorie is equal to a joule.

    Correct Answer
    A.  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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  • 5. 

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

    •  a) Water molecules are warm

    •  b) Water molecules are in motion

    • C) The glass of the thermometer gets cold

    Correct Answer
    A. 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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  • 6. 

      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. greater than the specific heat of water

    •  b. less than the specific heat of water

    • C. equal to the specific heat of water

    Correct Answer
    A.  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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  • 7. 

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

    •  a. absorbed by the surroundings

    •  b. absorbed by the universe

    •  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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  • 8. 

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

    • Thermal work

    • Thermal energy

    • Thermal expansion 

    • Thermal contraction 

    Correct Answer
    A. 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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  • 9. 

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

    • Joule

    • Calorie

    • Specific heat

    Correct Answer
    A. 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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  • 10. 

    2. Shining surfaces are

    •  good absorbers of heat

    • Good radiators of heat

    • Poor absorbers and poor radiators of heat

    Correct Answer
    A. 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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Quiz Review Timeline (Updated): Mar 17, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 11, 2019
    Quiz Created by
    Assisstant Ayman
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