Physics Semester Exam 1

16 Questions | Total Attempts: 533

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Physics Quizzes & Trivia

Physics. It’s the study of matter, motion and behaviour through space and time, with elements related to energy and force. It’s a vital realm of science as an overall study, and we’ll be looking at it in this quiz.


Questions and Answers
  • 1. 
    One possible unit of speed is
    • A. 

      Miles per hour.

    • B. 

      Light years per century.

    • C. 

      Kilometers per hour.

    • D. 

      All of the above.

    • E. 

      None of the above

  • 2. 
    Acceleration is defined as the CHANGE in
    • A. 

      Time it takes to move from one place to another place

    • B. 

      Velocity of an object.

    • C. 

      Distance divided by the time interval.

    • D. 

      Velocity divided by the time interval.

    • E. 

      .time it takes to move from one speed to another speed.

  • 3. 
    A car starts from rest and after 7 seconds it is moving at 42 m/s. What is the car’s average acceleration?
    • A. 

      0.17 m/s2

    • B. 

      1.67 m/s2

    • C. 

      6 m/s2

    • D. 

      7 m/s2

    • E. 

      None of the above

  • 4. 
    In the absence of air resistance, objects fall at constant
    • A. 

      Speed.

    • B. 

      Velocity.

    • C. 

      Acceleration.

    • D. 

      Distances each successive second.

    • E. 

      All of the above

  • 5. 
    Suppose an object is in free fall. Each second the object falls
    • A. 

      The same distance as in the second before.

    • B. 

      A larger distance than in the second before.

    • C. 

      With the same instantaneous speed.

    • D. 

      With the same average speed.

    • E. 

      None of the above

  • 6. 
    Consider drops of water leaking from a water faucet. As the drops fall they
    • A. 

      Remain at a relatively fixed distance from each other.

    • B. 

      Get farther apart.

    • C. 

      Get closer together.

  • 7. 
    • A. 

      Varies with body orientation

    • B. 

      Depends on launch speed.

    • C. 

      Is usually greater for taller players (but not always).

    • D. 

      Depends on all the above.

    • E. 

      Is g; no more, no less.

  • 8. 
    Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second and from 40 km/h to 45 km/h the next second. What is the car's acceleration?
    • A. 

      5 km/h•s

    • B. 

      10 km/h•s

    • C. 

      35 km/h•s

    • D. 

      40 km/h•s

    • E. 

      45 km/h•s

  • 9. 
    A ball is thrown straight up. At the top of its path its instantaneous speed is
    • A. 

      0 m/s.

    • B. 

      About 5 m/s.

    • C. 

      About 10 m/s.

    • D. 

      About 20 m/s.

    • E. 

      About 50 m/s.

  • 10. 
    When something falls to the ground, it accelerates. This acceleration is called the acceleration due to gravity and is symbolized by the letter g. What is the value of g on Earth's surface?
    • A. 

      0 m/s2

    • B. 

      About 5 m/s2

    • C. 

      About 10 m/s2

    • D. 

      About 20 m/s2

    • E. 

      About 50 m/s2

  • 11. 
    If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by
    • A. 

      About 5 m/s.

    • B. 

      About 10 m/s.

    • C. 

      About 15 m/s.

    • D. 

      A variable amount.

    • E. 

      A rate that depends on its initial speed.

  • 12. 
    A freely falling object starts from rest. After falling for 6 seconds, it will have a speed of about
    • A. 

      6 m/s.

    • B. 

      30 m/s.

    • C. 

      60 m/s.

    • D. 

      300 m/s.

    • E. 

      More than 300 m/s.

  • 13. 
    A pencil lies on your desk. If the Earth is moving around the sun at a speed of 30 km/s, how fast is the pencil moving relative to the desk? How fast is the pencil moving relative to the sun?
    • A. 

      0 km/s; 0 km/s

    • B. 

      0 km/s; 30 km/s

    • C. 

      30 km/s; 30 km/s

    • D. 

      There is not enough information to answer these questions.

  • 14. 
    • A. 

      15 N

    • B. 

      30 N

    • C. 

      45 N

    • D. 

      60 N

    • E. 

      None of the above

  • 15. 
    • A. 

      All the forces acting on an object are balanced.

    • B. 

      The sum of the +x forces on an object equals the sum of the –x forces.

    • C. 

      The net force on the object is zero.

    • D. 

      The sum of the upward forces equals the sum of the downward forces.

    • E. 

      All of the above

  • 16. 
    • A. 

      In a direction that depends on where the person is standing.

    • B. 

      Perpendicular to the ground underneath the person.

    • C. 

      Parallel to the ground.

    • D. 

      Straight down, even if the person is standing on a hill.

    • E. 

      All of the above