Select Correct One Over Physics Quiz

8 Questions | Total Attempts: 108

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Physics Quizzes & Trivia

Chapter 4 & 5


Questions and Answers
  • 1. 
    Which of the following statements can be explained by Newtons first law? a)when your car suddenly comes to a halt, you lunge forward b) when ur car rapidly accelerates, you are pressed backward against the seat
    • A. 

      Neither a and b

    • B. 

      Both a and b

    • C. 

      B but not A

  • 2. 
    Mass of car=1850 kg. one person applies a force of 275 N while other 395 N. both act in same direction. third force 560 N acts but in different opposite to that in which people are pushing. Find acceleration?
    • A. 

      .059 m/s^2

    • B. 

      1.4 m/s^2

    • C. 

      2.5 m/s^2

    • D. 

      .125 m/s^2

  • 3. 
    The net external fprce acting on an object is zero. which of the ff statements is true?
    • A. 

      Object is stationary

    • B. 

      Object can only b traveling with a constant velocity

    • C. 

      Object can either stationary or traveling with a constant velocity

    • D. 

      Object can only be traveling with a velocity that is changing

  • 4. 
    In Case A an object is moving straight downward with a constant speed of 9.80 m/s, while in Case B an object is moving straight downward with a constant acceleration of magnitude 9.80 m/s^2. Which one of the ff is true?
    • A. 

      A nonzero net external force acts on the object in both cases

    • B. 

      A nonzero net external force acts on the object in neither case

    • C. 

      A nonzero net external force acts on the object in Case A only

    • D. 

      A nonzero net external force acts on the object in Case B only

  • 5. 
    A Man is stranded on a raft(Mman +raft =1300kg), By paddling he causes an average force P of 17N to be applied to the raft in direction due eat( the +x direction). The wind also exerts a force A on the raft. This force has a magnitude of 15N and points 67degrees N of E. Find x and y components of the raft's acceleration.
    • A. 

      Ax= .014m/s^2 Ay=.020m/s^2

    • B. 

      Ax= .315m/s^2 Ay=.10m/s^2

    • C. 

      Ax= .024m/s^2 Ay=.023m/s^2

    • D. 

      Ax= .018m/s^2 Ay=.011m/s^2

  • 6. 
    At question above. the velocity of raft is 0.15m/s, in a direction due east ( the +x direction). Forces maintained 65 s, find the x and y componenets of the raft's displacement during this time interval.
    • A. 

      X=56 y=40

    • B. 

      X=48 y=23

    • C. 

      X=32 y=54

    • D. 

      X=98 y=67

  • 7. 
    Newtons second law indicates that when a net force acts on an object, it must accelerate. Does this mean that when two or more forces are applied to an object simultaneously, it must accelerate.
    • A. 

      True

    • B. 

      False

  • 8. 
    All of the ff. except one cause the acceleration of an object to double. Which one is the excepption? 
    • A. 

      All forces acting on the object double

    • B. 

      Net force acting on the object double

    • C. 

      Both the net force acting on the object and the mass of d object double

    • D. 

      The net force acting on the object remains the same, while the mass of the object is reduced by a factor of two

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