Are You Ready To Take The Physics Practice Questions?

42 Questions | Total Attempts: 606

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Are You Ready To Take The Physics Practice Questions?

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Questions and Answers
  • 1. 
    Science is a body of knowledge that
    • A. 

      Condenses knowledge into testable laws

    • B. 

      Describes order in nature

    • C. 

      Is an ongoing activity of humans

    • D. 

      All of the above choices are correct

    • E. 

      None of the above choices are correct

  • 2. 
    • A. 

      Acceleration increases

    • B. 

      Velocity increases

    • C. 

      Both of these

    • D. 

      None of these

  • 3. 
    • A. 

      The milk carton has inertia

    • B. 

      The milk carton has no acceleration

    • C. 

      There is an action-reaction pair of forces

    • D. 

      Gravity tends to hold the milk carton secure

    • E. 

      None of these

  • 4. 
    The gain in speed each second for a freely-falling object is about
    • A. 

      0

    • B. 

      20 m/s

    • C. 

      5 m/s

    • D. 

      10 m/s

    • E. 

      Depends on the initial speed

  • 5. 
    A package falls of a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is
    • A. 

      More than 30 m/s

    • B. 

      Zero

    • C. 

      Less than 30 m/s but larger than zero

    • D. 

      About 30 m/s

    • E. 

      More information is needed for an estimate

  • 6. 
    According to Newton's law of inertia, a rail road train in motion should continue going forever even if its engine is turned off. We never observe this because railroad trains.
    • A. 

      Are much too heavy

    • B. 

      Move too slowly

    • C. 

      Must go up and down hills

    • D. 

      Always have forces that oppose their motion

  • 7. 
    A scientific statement that can never be changed is a scientific
    • A. 

      Principle

    • B. 

      Theory

    • C. 

      Hypothesis

    • D. 

      Law

    • E. 

      None of the above choices are correct

  • 8. 
    If no external forces are acting on a moving object it will
    • A. 

      Continue moving at the same velocity

    • B. 

      Move slower and slower until it finally stops

    • C. 

      Continue moving at the same speed

  • 9. 
    Galileo's use of inclined planes allowed him to effectively
    • A. 

      Eliminate the acceleration of free fall

    • B. 

      Increase the acceleration beyond that of free fall

    • C. 

      Slow down the acceleration of free fall

    • D. 

      Eliminate friction

  • 10. 
    The two measurements necessary for calculating average speed are
    • A. 

      Distance and acceleration

    • B. 

      Velocity and distance

    • C. 

      Acceleration and time

    • D. 

      Velocity and time

    • E. 

      Distance and time

  • 11. 
    A horse gallops a distance of 10 kilometers in a time of 30 minutes. It's average speed is
    • A. 

      15 km/h

    • B. 

      30 km/h

    • C. 

      20 km/h

    • D. 

      40 km/h

  • 12. 
    A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval it acceleration is
    • A. 

      Zero

    • B. 

      1000 km/hr

    • C. 

      110 km/hr

    • D. 

      10 km/hr

  • 13. 
    A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected the force required to keep the puck sliding at constant velocity is
    • A. 

      Equal to its weight divided by its mass

    • B. 

      Zero

    • C. 

      Equal to the product of its mass times its weight

    • D. 

      Equal to its weight

  • 14. 
    Twelve seconds after starting from rest, an object falling freely will have a speed of
    • A. 

      50 m/s

    • B. 

      100 m/s

    • C. 

      10 m/s

    • D. 

      More than 100 m/s

  • 15. 
    If an object moves with constant acceleration, its velocity must
    • A. 

      Be constant also

    • B. 

      Change by the same amount each second

    • C. 

      Always decrease

    • D. 

      Change b varying amounts depending on its speed

  • 16. 
    A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
    • A. 

      Opposite its velocity

    • B. 

      Directed downward

    • C. 

      In the direction of motion

    • D. 

      Directed upward

  • 17. 
    If a car accelerates form rest at 2 meters per second per second, its speed 3 seconds later will be about
    • A. 

      2 m/s

    • B. 

      6 m/s

    • C. 

      4 m/s

    • D. 

      3 m/s

  • 18. 
    At on instant an object in free fall is moving downward at 50 meters per second. One second later is speed should be about
    • A. 

      25 m/s

    • B. 

      100 m/s

    • C. 

      55 m/s

    • D. 

      60 m/s

    • E. 

      50 m/s

  • 19. 
    Starting from rest, the distance a freely-falling object will fall in 1.0 second is about
    • A. 

      10 m

    • B. 

      2.00 m

    • C. 

      5.0 m

    • D. 

      None of the above

  • 20. 
    An object falls freely from rest on a planet where the acceleration due to gravity is 20 meters per second squared. After 5 seconds, the object will have a speed of
    • A. 

      20 m/s

    • B. 

      10 m/s

    • C. 

      50 m/s

    • D. 

      5 m/s

    • E. 

      100 m/s

  • 21. 
    If you drop an object, it will accelerate downward at a rate of 9.8 meters per second per second. If you instead throw it downwards, its acceleration (in the absence of air resistance and after it leaves your hand) will be
    • A. 

      Greater than 9.8 meters per second per second

    • B. 

      Less than 9.8 meters per second per second

    • C. 

      9.8 meters per second per second

  • 22. 
    If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about
    • A. 

      2 seconds

    • B. 

      20 seconds

    • C. 

      10 seconds

    • D. 

      1 second

    • E. 

      Not enough information to estimate

  • 23. 
    When a rock thrown straight upwards gets tot he exact top of its path, its
    • A. 

      Velocity is zero and its acceleration is zero

    • B. 

      Velocity is about 10 m/s and its acceleration is zero

    • C. 

      Velocity is zero and its acceleration is about 10 meters per second per second

    • D. 

      Velocity is about 10 m/s and its acceleration is about 10 meters per second per second

    • E. 

      None of these

  • 24. 
    A ball is thrown upwards. Neglecting air resistance, what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?
    • A. 

      About 80 m/s

    • B. 

      About 60 m/s

    • C. 

      About 110 m/s

    • D. 

      About 100 m/s

    • E. 

      About 50 m/s

  • 25. 
    Which has a greater mass?
    • A. 

      An automobile battery

    • B. 

      A king-size pillow

    • C. 

      Neither- both have the same