Earth's Surface Heat Quiz Questions

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| By Ntsakiris
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Ntsakiris
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| Attempts: 157
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  • 1/10 Questions

    If the atoms in an object begin to move faster, this indicates

    • The object is heating up
    • The object is cooling down
    • The object is moving faster
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About This Quiz

Explore the fundamentals of heat transfer and temperature changes in this engaging quiz. Assess your understanding of how heat moves, the effects of temperature on molecular motion, and the principles of convection currents. Ideal for learners looking to enhance their physics knowledge.

Earths Surface Heat Quiz Questions - Quiz

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  • 2. 

    Heat moves from

    • Cool to warm

    • Warm to cool

    • Heat does not transfer

    Correct Answer
    A. Warm to cool
    Explanation
    Heat moves from areas of higher temperature (warm) to areas of lower temperature (cool). This is because heat energy naturally flows from hotter objects to colder ones in an attempt to achieve thermal equilibrium. This process is known as heat transfer and occurs through conduction, convection, and radiation. Therefore, the correct answer is "warm to cool".

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  • 3. 

    Heat is created by

    • Convection

    • Conduction

    • The movement of atoms

    Correct Answer
    A. The movement of atoms
    Explanation
    Heat is created by the movement of atoms. When atoms or molecules in a substance gain energy, they start to move faster and collide with each other. This movement transfers energy from one atom to another, resulting in the generation of heat. The more vigorous the movement of atoms, the higher the temperature and heat produced. Convection and conduction are both processes that involve the transfer of heat, but they are not the actual source of heat. They occur due to the movement of atoms, which is the fundamental cause of heat generation.

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  • 4. 

    Convection currents are created by

    • Warm rising, cool sinking

    • Warm sinking, cool rising

    • Faster atoms coming in contact with slower atoms

    Correct Answer
    A. Warm rising, cool sinking
    Explanation
    Convection currents are created by warm air or fluid rising and cool air or fluid sinking. When a substance is heated, its molecules gain energy and move faster, causing them to spread apart and become less dense. This warm, less dense substance then rises, creating a current. On the other hand, cool air or fluid is denser and sinks due to gravity. This process of warm rising and cool sinking creates convection currents.

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  • 5. 

    Earth's internal heat energy comes from

    • The sun and volcanoes

    • The core and radioactive decay

    • Trolls in the center of the earth

    Correct Answer
    A. The core and radioactive decay
    Explanation
    The correct answer is "the core and radioactive decay." The Earth's internal heat energy primarily comes from two sources: the core and radioactive decay. The Earth's core, composed of molten iron and nickel, generates heat through convection and the release of gravitational potential energy. Additionally, radioactive decay of elements such as uranium, thorium, and potassium within the Earth's crust also contributes to the internal heat. These processes continuously generate heat, maintaining the Earth's internal temperature and driving geological activities like plate tectonics and volcanic eruptions.

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  • 6. 

    Earth's surface heat comes from

    • The sun and volcanoes

    • The core and radioactive decay

    • Trolls in the center of the earth

    Correct Answer
    A. The sun and volcanoes
    Explanation
    The correct answer is the sun and volcanoes. The sun is the primary source of heat for the Earth's surface, as it emits vast amounts of energy in the form of sunlight. This solar energy warms the Earth's atmosphere and surface. Volcanoes also contribute to the Earth's surface heat through volcanic activity, which releases heat from the Earth's interior. Both the sun and volcanic activity play significant roles in maintaining the Earth's surface temperature.

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  • 7. 

    Radiation that leaves the Sun reaches the earth as

    • Visible light

    • Ultraviolet light

    • Infrared radiation

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The radiation that leaves the Sun reaches the earth in the form of visible light, ultraviolet light, and infrared radiation. Visible light is the portion of the electromagnetic spectrum that is visible to the human eye. Ultraviolet light has shorter wavelengths and is responsible for causing sunburns and other skin damage. Infrared radiation has longer wavelengths and is felt as heat. Therefore, all three types of radiation mentioned in the answer (visible light, ultraviolet light, and infrared radiation) reach the earth from the Sun.

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  • 8. 

    The average speed of the atoms in an ice cube are slow.  This shows

    • The heat energy of the ice cube

    • The temperature of the ice cube

    • The high kinetic energy of the ice cube

    Correct Answer
    A. The temperature of the ice cube
    Explanation
    The average speed of the atoms in an ice cube being slow indicates the temperature of the ice cube. Temperature is a measure of the average kinetic energy of the particles in a substance. Since the atoms in the ice cube have slow average speed, it implies that they have lower kinetic energy, which corresponds to a lower temperature.

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  • 9. 

    If you mix 1 liter of 30 degrees C water with 1 liter of 70 degrees C water, the final temperature will be

    • 40 degrees C

    • 100 degrees C

    • 50 degrees C

    Correct Answer
    A. 50 degrees C
    Explanation
    When two substances of different temperatures are mixed together, they tend to reach a common temperature. This is known as thermal equilibrium. In this case, the 30 degrees C water and the 70 degrees C water will mix to reach a final temperature that is the average of the two initial temperatures. Therefore, the final temperature will be (30 + 70) / 2 = 50 degrees C.

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  • 10. 

    Solar radiation is mostly

    • Visible light

    • Ultraviolet light

    • Infrared radiation

    Correct Answer
    A. Visible light
    Explanation
    Solar radiation refers to the energy emitted by the sun in the form of electromagnetic waves. The sun emits a wide range of wavelengths, including visible light, ultraviolet light, and infrared radiation. However, the majority of solar radiation that reaches the Earth's surface is in the form of visible light. This is the light that is visible to the human eye and is responsible for providing illumination and enabling us to see our surroundings. Ultraviolet light and infrared radiation make up a smaller portion of solar radiation and have different effects and applications.

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

  • Current Version
  • Jan 30, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 10, 2011
    Quiz Created by
    Ntsakiris
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