Physics Practice Questions From Forces, Energy And Motion! Quiz

10 Questions | Total Attempts: 319

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Physics Practice Questions From Forces, Energy And Motion! Quiz

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Questions and Answers
  • 1. 
    A wheeled cart is moving eastward at a speed of 1 meter per second when it is acted on by a 30-newton force to the north and a 30-newton force to the south. Which of the following BEST explains why the cart’s speed and direction stay the same?
    • A. 

      The new forces are perpendicular to the main force.

    • B. 

      The new forces are balanced.

    • C. 

      The new forces are smaller than the main force.

    • D. 

      The new forces are in opposite directions.

  • 2. 
    Two dogs are pulling on opposite ends of a rope. The dog on the left is pulling with a force of 25 newtons. The dog on the right is pulling with a force of 60 newtons. What will be the resulting motion?
    • A. 

      The dogs will move toward the right.

    • B. 

      The dogs will move toward the left.

    • C. 

      The dogs will not move.

    • D. 

      Both dogs will move in the direction that they are pulling.

  • 3. 
    A truck carrying a box is traveling 60 kilometers per hour. Suddenly, the truck brakes to a stop. Which choice best explains what will happen to the box?
    • A. 

      The box will slide off the back because for every action there is an equal and opposite reaction.

    • B. 

      The box will not move because objects at rest tend to stay at rest.

    • C. 

      The box will keep moving forward because objects in motion tend to stay in motion.

    • D. 

      The box will gain speed because, for objects of a given mass, greater force results in a greater acceleration.

  • 4. 
    What part of Newton’s first law of motion is demonstrated when a magician pulls the tablecloth out from under a set of dishes?
    • A. 

      An object in motion will tend to be acted upon by an outside force.

    • B. 

      An object in motion tends to come to rest.

    • C. 

      An object in motion will tend to stay in motion.

    • D. 

      An object at rest will tend to stay at rest.

  • 5. 
    Look at the illustrations. In the first, the truck is traveling 30 miles per hour. In the second, the truck has braked to a stop. Which of Newton’s laws of motion explains what happens next?
    • A. 

      For every action there is an equal and opposite reaction.

    • B. 

      Objects at rest tend to stay at rest.

    • C. 

      Objects in motion tend to stay in motion.

    • D. 

      For objects of a given mass, greater force results in a greater acceleration.

  • 6. 
    The man who introduced the idea that all of the continents of the Earth were at one timejoined to make one large land mass was -
    • A. 

      Arthur Holmes

    • B. 

      Harry Hess

    • C. 

      John Dalton

    • D. 

      Alfred Wegener

  • 7. 
    The most recently formed crust of the Earth would be found -
    • A. 

      Where plates moving sideways passed each other

    • B. 

      Where one plate is going under another plate

    • C. 

      Where two plates are pushing directly toward each other

    • D. 

      Where two plates are moving away from each other in opposite directions

  • 8. 
    Which of these landforms would most likely be found at a divergent boundary?
    • A. 

      Volcanic island

    • B. 

      Mid-ocean ridge

    • C. 

      Fault line

    • D. 

      Mountain

  • 9. 
    Which of these landforms is most likely to be found at a convergent boundary?
    • A. 

      Fault line

    • B. 

      Mountain

    • C. 

      Mid-ocean ridge

    • D. 

      Rift valley

  • 10. 
    Martin gathered a toy car, a ramp, a stopwatch, a meter stick, and a variety of weights. What is he likely testing?
    • A. 

      How the angle of a ramp affects the speed of the car

    • B. 

      How friction affects the speed of the car

    • C. 

      How equal forces work on the placement of the car and the ramp

    • D. 

      How mass affects the speed of the car