Forms of Energy
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Questions and Answers

Ellie plugs in a radio and turns it on. What change in energy takes place when she does this?

  • Light energy changes into sound energy
  • Electrical energy changes into sound energy (correct)
  • Sound energy changes into electrical energy
  • Chemical energy changes into sound energy

    • Fossil fuels are the most common source of energy. What else is true of fossil fuels?

  • They are renewable
  • They form quickly underground
  • They can be made in a laboratory
  • They are burned to release energy (correct)

    • A rolling ball has kinetic energy. What does it mean for an object ro have kinetic energy?

  • The object is in motion (correct)
  • The object has stored energy
  • The object has used all of its energy
  • The object is passing on its energy

    • Objects can have potential energy because of their position. What object has potential energy?

    <p>Book sitting on a table</p> Signup and view all the answers

    Objects may have potential energy or kinetic energy. How do potential energy and kinetic energy compare to each other?

    <p>Both are forms of mechanical energy</p> Signup and view all the answers

    Which forms of energy are produced by the sun?

    <p>Heat and light</p> Signup and view all the answers

    Which energy change takes place when an electric hair dryer is used?

    <p>Electricity to heat and sound energy</p> Signup and view all the answers

    Which object has potential energy but not kinetic energy?

    <p>A roller coaster car stopped on the top of a hill</p> Signup and view all the answers

    Which form of energy is stored in this container?

    <p>Chemical energy</p> Signup and view all the answers

    How could you increase the pitch of a sound produced by an object?

    <p>Make the object vibrate faster</p> Signup and view all the answers

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