Energy and Work

Rhonda Terrill

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  1. Energy is the ability to cause change.

    2. Your answer:
    TrueFalse

  2. The transfer of energy by direct contact between particles is called radiation.

    3. Your answer:
    TrueFalse

  3. The transfer of heat energy through fluids by moving particles is called convection.

    4. Your answer:
    TrueFalse

  4. A calorie is not a measure of energy.

    5. Your answer:
    TrueFalse

  5. Stored energy is potential energy.

    6. Your answer:
    TrueFalse

  6. The basic unit of energy used by scientists is called the joule.

    7. Your answer:
    TrueFalse

  7. Gravitational potential energy is called kinetic energy.

    8. Your answer:
    TrueFalse

  8. A push or a pull is considered to be a force.

    9. Your answer:
    TrueFalse

  9. The unit used to measure force is called a newton.

    10. Your answer:
    TrueFalse

  10. Friction is a force that acts with other forces like pushes and pulls.

    11. Your answer:
    TrueFalse

  11. Energy can cause which of the following to change?

    12. Your answer:
    Speed
    all of the above
    temperature
    direction

  12. The following are all types of energy except,

    13. Your answer:
    heat
    electrical
    intellectual
    chemical

  13. The excitement in a roller coaster ride depends on changes in what types of energy?

    14. Your answer:
    electrical and mechanical
    kintetic and electrical
    kinetic and potential
    potential and mechanical

  14. A calorie measured stored in energy in,

    15. Your answer:
    food.
    plants.
    machines.
    a car.

  15. What is needed to do work?

    16. Your answer:
    energy
    knowledge
    matter
    tools

  16. Of the following professions which does the most work?

    17. Your answer:
    doctor
    librarian
    construction worker
    accountant

  17. The formula to measure work is,

    18. Your answer:
    Work = Force times Distance
    Work = Force times Energy
    Work = Potential Energy times Force
    Work = Energy times Distance

  18. Which is an example of when friction is not useful?

    19. Your answer:
    When sledding or skiing.
    When riding a bike.
    When a car comes to a stop.
    When walking.

  19. When Sandra added some oil to her skateboard wheels, she found that she could glide farther and faster. Why?

    20. Your answer:
    rolling friction is less than sliding friction
    she increased the amount of sliding friction
    she used a fluid lubricant
    she was changing more potential enrgy into kintic energy

  20. Suppose you were at the blastoff of a space shuttle. what are some forms of energy you could observe?

    21. Your answer:
    all of the above
    heat
    light and sound
    mechanical

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