Energy Concepts and Conservation Quiz
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Questions and Answers

What happens to the potential energy of a billiard ball when it is dropped?

  • It is transformed into kinetic energy as it falls. (correct)
  • It is converted entirely into thermal energy.
  • It is destroyed and does not change form.
  • It remains potential energy until the ball hits the table.

    • In an energy exchange, what occurs when the system loses energy?

  • The surroundings lose an equivalent amount of energy.
  • The system immediately creates more energy.
  • Energy is destroyed to maintain balance.
  • The surroundings gain the same exact amount of energy. (correct)

    • Which statement accurately defines 'the system' in an energy context?

  • The specific object or collection of objects being analyzed. (correct)
  • Only the reactants of a chemical process.
  • The entire environment surrounding a chemical reaction.
  • Any energy that is lost during a reaction.

    • What form of energy is produced when iron reacts with oxygen in a hand warmer?

    <p>Thermal energy that warms the surroundings.</p> Signup and view all the answers

    Which of the following concepts is incorrectly associated with the law of conservation of energy?

    <p>Energy can be created from nothing under certain conditions.</p> Signup and view all the answers

    What is a consequence of energy transfer within a defined system?

    <p>The total energy remains constant.</p> Signup and view all the answers

    Which statement best describes 'the surroundings' in energy exchanges?

    <p>They encompass everything that can exchange energy with the system.</p> Signup and view all the answers

    How is energy described in the context of a chemical hand warmer?

    <p>It transfers from the chemical to the surroundings.</p> Signup and view all the answers

    What happens to kinetic energy when a spring is released?

    <p>It is converted from potential energy stored in the spring.</p> Signup and view all the answers

    When energy is exchanged between a system and its surroundings, what remains true?

    <p>Energy lost by the system is equal to energy gained by the surroundings.</p> Signup and view all the answers

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