Ch. 12 Online Test

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  • 1/10 Questions

    The total energy of all the particles in a body is its ______________.

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About This Quiz

Ch. 12 Online Test assesses understanding of thermodynamics, focusing on concepts like heat transfer, thermal energy, and properties of insulators. This quiz helps learners evaluate their grasp of how temperature changes affect matter, crucial for foundational physics knowledge.

Thermodynamics Quizzes & Trivia

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  • 2. 

    A ______________ limits the amount of heat that passes through it.

    Explanation
    An insulator is a material that restricts or limits the transfer of heat. It has low thermal conductivity, meaning it does not allow heat to easily pass through it. This property makes insulators useful for preventing heat loss or gain in various applications, such as in building insulation or thermal clothing.

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  • 3. 

    ______________ is one kind of energy that travels from the Sun through space.

    Explanation
    Radiation is a form of energy that travels from the Sun through space. It is the transfer of energy through electromagnetic waves or particles. The Sun emits radiation in the form of visible light, ultraviolet rays, and infrared radiation. This energy travels through the vacuum of space and reaches the Earth, providing heat and light. Radiation is an essential source of energy for life on Earth and plays a crucial role in various natural processes, such as photosynthesis.

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  • 4. 

    A material that allows heat to pass through it is a ______________.

    Explanation
    A conductor is a material that allows heat to pass through it easily. Conductors have high thermal conductivity, which means that they have a high ability to transfer heat. This is because conductors have loosely bound electrons that are free to move and transfer thermal energy. Examples of conductors include metals like copper and aluminum.

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  • 5. 

    In a __________________ ________________, a heated liquid or gas rises and is replaced by cooler liquid or gas.

    Explanation
    A convection current is a process in which a heated liquid or gas rises and is replaced by cooler liquid or gas. This occurs due to the difference in density between the hot and cold substances. As the heated substance becomes less dense, it rises while the cooler substance, being more dense, sinks. This continuous movement of hot and cold substances creates a convection current.

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  • 6. 

    The transfer of energy by one object touching another is _____________.

    Explanation
    Conduction is the transfer of energy from one object to another through direct contact. When two objects are in contact, the particles in the hotter object vibrate more and collide with the particles in the cooler object, transferring energy. This process continues until both objects reach thermal equilibrium. Therefore, conduction is the correct answer for the transfer of energy by one object touching another.

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  • 7. 

    Choose the words that belong in the sentence.  As an object ___________, the particles move ____________.

    • Cools, slower

    • Warms, slower

    • Cools, in a straight line

    • Warms, in a straight line

    Correct Answer
    A. Cools, slower
    Explanation
    When an object cools down, the particles within it lose energy and move at a slower pace. This decrease in speed is reflected in the word "slower," which is the correct answer.

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  • 8. 

    The liquid in a thermometer contracts.  What does this mean about the substance it is measuring?

    • The substance is heating up.

    • The substance is cooling down.

    • The substance is staying the same.

    • The substance cannot be measured.

    Correct Answer
    A. The substance is cooling down.
    Explanation
    When the liquid in a thermometer contracts, it means that the substance being measured is cooling down. This is because as the temperature decreases, the particles in the substance slow down and become more compact, causing the liquid in the thermometer to contract. Therefore, the correct answer is that the substance is cooling down.

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  • 9. 

    Which method of heat transfer does not require matter?

    • Radiation

    • Insulation

    • Convection

    • Conduction

    Correct Answer
    A. Radiation
    Explanation
    Radiation is the method of heat transfer that does not require matter. It is the transfer of heat through electromagnetic waves, such as infrared radiation, without the need for a medium to carry the heat. Unlike conduction and convection, which require the presence of matter to transfer heat, radiation can occur in a vacuum or through transparent mediums. Insulation, on the other hand, is a material used to slow down the transfer of heat through conduction or convection, but it still requires matter for heat transfer to occur.

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  • 10. 

    Which of the following are insulators?

    • Metal

    • Plastic

    • Wood

    • Marble

    Correct Answer(s)
    A. Plastic
    A. Wood
    A. Marble
    Explanation
    Plastic, wood, and marble are all insulators because they have high resistance to the flow of electricity. Unlike metals, which are conductors, these materials do not allow the free movement of electrons. Insulators are commonly used to prevent the flow of electricity, protect against electric shocks, and provide insulation in various applications.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 22, 2011
    Quiz Created by
    Macummings7
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