Essential Physics Practice Exam

72 Questions | Total Attempts: 46

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Essential Physics Practice Exam

Take this quiz to help you prepare for your final. You will want a calculator and your equation list from your review handy. I will not see the results of your quiz unless you print out or email me the completion certificate. Do this if you want some bonus points! (email: rachael. [email protected] Org)


Questions and Answers
  • 1. 
     All Energy adheres to the Law of Conervation of Energy. Why is a light bulb not 100% efficient?
    • A. 

      New light bulbs are 100% efficient

    • B. 

      All energy transfers lose energy in the form of heat

    • C. 

      Tungsten wire in light bulbs are weak

    • D. 

      Of all energy transfers, light bulbs are least efficient

  • 2. 
    What is the potential energy of a 80 kg tourist at the top of a building that is 400 m high?
    • A. 

      9.8 J

    • B. 

      320000 J

    • C. 

      32000 J

    • D. 

      313600 J

  • 3. 
    Energy produced by the sun is
    • A. 

      Nuclear

    • B. 

      Chemical

    • C. 

      Electrical

    • D. 

      Mechanical

  • 4. 
    If the velocity of an object is 1m/s, then increases to 2 m/s, what will happen to the kinetic energy of the object?
    • A. 

      It is reduced by 2

    • B. 

      It stays the same

    • C. 

      It will double

    • D. 

      It will be multiplied by 4

  • 5. 
    Energy is measured in
    • A. 

      Newtons

    • B. 

      Amps

    • C. 

      Joules

    • D. 

      Kilograms

  • 6. 
    Ultraviolet light is an example of
    • A. 

      Heat energy

    • B. 

      Electromagnetic energy

    • C. 

      Potential energy

    • D. 

      Electrical energy

  • 7. 
    A magic turtle has a mass of 47kg and can run 31 m/s. What is his kinetic energy?
    • A. 

      22583.5 J

    • B. 

      68479 J

    • C. 

      1739 J

    • D. 

      34239.5 J

  • 8. 
    Pedaling a bike is an example of
    • A. 

      Potential energy

    • B. 

      Thermal energy

    • C. 

      Mechanical energy

    • D. 

      Heat energy

  • 9. 
     When you drag your book across a table, friction will convert
    • A. 

      Kinetic energy to potential energy

    • B. 

      Kinetic energy to thermal energy

    • C. 

      Potential energy to wavelengths

    • D. 

      Potential energy to kinetic energy

  • 10. 
    In the energy transfer diagram of a battery and a light bulb,
    • A. 

      Heat energy is transferred to chemical energy

    • B. 

      Chemical energy is transferred to mechanical energy

    • C. 

      Electrical energy is transferred to mechanical energy

    • D. 

      Electrical energy is transferred to light (electromagnetic) energy

  • 11. 
    Point A represents matter at a solid. What phase change is happening at point B?
    • A. 

      Freezing

    • B. 

      Melting

    • C. 

      Sublimation

    • D. 

      Vaporization

  • 12. 
    Point C represents the melting point of a substance. What would Point E represent?
    • A. 

      Freezing

    • B. 

      Melting

    • C. 

      Sublimation

    • D. 

      Vaporization

  • 13. 
    Which one of the following is a conductor?
    • A. 

      Straw

    • B. 

      Metal

    • C. 

      Wool

    • D. 

      Wool

  • 14. 
    A charged balloon can pick up small bits of paper, proving that its ____ force is stronger than Earth's gravitational force.
    • A. 

      Voltage

    • B. 

      Magnetic field

    • C. 

      Electrical force

    • D. 

      Current

  • 15. 
    The phase of matter with a definite chape and volume is
    • A. 

      Plasma

    • B. 

      Liquid

    • C. 

      Gas

    • D. 

      Solid

  • 16. 
    The phase with the most energetic molecules is
    • A. 

      Solid

    • B. 

      Liquid

    • C. 

      Gas

    • D. 

      Absolute zero

  • 17. 
    When submimation occurs,
    • A. 

      Solid is converted to gas

    • B. 

      Solid is converted to liquid

    • C. 

      Gas is converted to liquid

    • D. 

      Water melts

  • 18. 
    Ohms () is the unit of measurement for
    • A. 

      Current

    • B. 

      Resistance

    • C. 

      Voltage

    • D. 

      Temperature

  • 19. 
    Like charges
    • A. 

      Attract

    • B. 

      Repel

    • C. 

      Balance one another

  • 20. 
    Which temperature scale does water have a boiling point of 100 and a freezing point of 0
    • A. 

      Fahrenheit

    • B. 

      Celsius

    • C. 

      Kelvin

    • D. 

      Rankine

  • 21. 
    Tension breaker: Pizza is
    • A. 

      Delicious

    • B. 

      Just ok

    • C. 

      Gross

    • D. 

      For sissies

  • 22. 
    The way in which energy travels the length of a metal is
    • A. 

      Radiation

    • B. 

      Convection

    • C. 

      Conduction

    • D. 

      Conviction

  • 23. 
    The temperature in which particles would not be moving
    • A. 

      32 degrees F

    • B. 

      -273 Kelvin

    • C. 

      0 degrees Celsius

    • D. 

      Absolute Zero

  • 24. 
    When using the equation I=V/R, what happens to the current when resistance is doubled?
    • A. 

      The current decreases

    • B. 

      The current increases

    • C. 

      The current stays the same

    • D. 

      The current alternates

  • 25. 
    Current is measured using
    • A. 

      Coulombs

    • B. 

      Amps

    • C. 

      Ohms

    • D. 

      Volts