Conceptual Physics (Summer) Final

40 Questions | Total Attempts: 113

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Energy Quizzes & Trivia

Questions and Answers
  • 1. 
    In science, a theory is
    • A. 

      An educated guess

    • B. 

      Less than a fact

    • C. 

      Unchangeable

    • D. 

      A synthesis of a large body of well-tested knowledge

  • 2. 
    A scientific hypothesis may turn out to be right or it may turn out to be wrong. If it is a valid hypothesis, there must be a test for proving it 
    • A. 

      Right

    • B. 

      Wrong

  • 3. 
    A sheet of paper can be withdrawn from under a container of mild without toppling if the paper is jerked quickly.  This best demonstrates that
    • A. 

      Gravity tends to hold the milk carton secure

    • B. 

      The milk carton has no acceleration

    • C. 

      The milk carton has inertia

    • D. 

      There is an action-reaction pair of forces

  • 4. 
    When you stand at rest on a pair of bathroom scales, the readings on the scales will always
    • A. 

      Each equal your weight

    • B. 

      Each be half your weight

    • C. 

      Add up to be equal to your weight

  • 5. 
    If your automobile runs out of fuel while you are driving, the engine stops but you do not come to an abrupt stop. The concept that most explains why is
    • A. 

      Inertia

    • B. 

      Resistance

    • C. 

      Acceleration

    • D. 

      Gravity

  • 6. 
    If no external forces are acting on a moving object, it will
    • A. 

      Continue moving at the same speed

    • B. 

      Continue moving at the same velocity

    • C. 

      Move slower until it finally stops

  • 7. 
    A horse gallops a distance of 10 kilometers in a time of 30 minutes.  Its average speed is
    • A. 

      40 km/h

    • B. 

      15 km/h

    • C. 

      20 km/h

    • D. 

      30 km/h

  • 8. 
    If a freely falling object were somehow equipped witha speedometer, its speed reading would increase each second by about
    • A. 

      10 m/s

    • B. 

      15 m/s

    • C. 

      A variable amount

    • D. 

      Depends on its initial speed

  • 9. 
    If ia car increases its velocity from zero to 60 km/h in 10 seconds, its acceleration is
    • A. 

      3 km/h/s

    • B. 

      600 km/h/s

    • C. 

      6 km/h/s

    • D. 

      10 km/h/s

  • 10. 
    A ball is thrown upwards and caught when it comes back down. In the presence of air resistance, the speed with which it is caught is always
    • A. 

      The same as the speed it had when thrown upwards

    • B. 

      Less than the speed it had when thrown upwards

    • C. 

      More than the speed it had when thrown upwards

    • D. 

      Impossible to determine

  • 11. 
    A rock weighs 30N on Earth. A second rock weighs 30N on the moon. Which rock has greater mass?
    • A. 

      They have the same mass

    • B. 

      The one on the moon

    • C. 

      The one on Earth

    • D. 

      Not enough information to say

  • 12. 
    An object is propelled along a straight line path by a force.  If the net force were doubled, the object's acceleration would be
    • A. 

      Four times as much

    • B. 

      Half as much

    • C. 

      The same

    • D. 

      Twice as much

  • 13. 
    A car has a mass of 1000 kg and accelerates at 2 meters per second squared.  What is the magnitude of the force exerted on the car?
    • A. 

      2000N

    • B. 

      1000N

    • C. 

      1500N

    • D. 

      500N

  • 14. 
    A player catches a ball.  Consider the action force to be the impact of the ball against the player's glove.  The reaction to this force is the
    • A. 

      Force the glove exerts on the ball

    • B. 

      Friction of the ground against the player's shoes

    • C. 

      Muscular effort in the player's arms

    • D. 

      Player's grip on the glove

  • 15. 
    A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle that undergoes the greatest change in velocity will be the
    • A. 

      Same for both

    • B. 

      Volkswagen

    • C. 

      Mack truck

  • 16. 
    Two objects have the same size and shape, but one is much heavier than the other. When they are dropped simultaneously from a tower, they reach the ground at the same time, but the heavier one has a greater
    • A. 

      Acceleration

    • B. 

      Momentum

    • C. 

      Speed

    • D. 

      All of these

  • 17. 
    A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed?
    • A. 

      3 m/s

    • B. 

      4 m/s

    • C. 

      12 m/s

    • D. 

      48 m/s

  • 18. 
    If you push for a half hour or a whole hour against a stationary wall
    • A. 

      Half as much work is done during the half hour

    • B. 

      Twice as much work is done during the half hour

    • C. 

      No work on the wall is done on either case

    • D. 

      It is impossible to determine how much work is done

  • 19. 
    If you push an object twice as far while applying the same force, you do
    • A. 

      Four times as much work

    • B. 

      The same amount of work

    • C. 

      Twice as much work

    • D. 

      Half as much work

  • 20. 
    If an object is raised twice as high, its potential energy will be
    • A. 

      Four times as much

    • B. 

      Half as much

    • C. 

      Twice as much

    • D. 

      Impossible to determine unless the time is given

  • 21. 
    An object that has kinetic energy must be
    • A. 

      At an elevated position

    • B. 

      Falling

    • C. 

      At rest

    • D. 

      Moving

  • 22. 
    An object may have potential energy because of its
    • A. 

      Acceleration

    • B. 

      Momentum

    • C. 

      Speed

    • D. 

      Location

  • 23. 
    Which of the following is not a transverse wave?
    • A. 

      Light

    • B. 

      Sound

    • C. 

      Radio

    • D. 

      X-rays

  • 24. 
    The vibrations of a transverse wave move in a direction
    • A. 

      That changes with speed

    • B. 

      Along the direction of wave travel

    • C. 

      At right angles to the direction of wave travel

  • 25. 
    If a frequency of a certain wave is 10 hertz, it period is
    • A. 

      10 seconds

    • B. 

      100 seconds

    • C. 

      0.1 second

    • D. 

      None of the above

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