Physical Science Term 1 Review

70 Questions | Total Attempts: 88

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Physical Science Term 1 Review

Questions and Answers
  • 1. 
    How much work was done if 5 N of force was used to move an object 25 meters?
    • A. 

      30 Joules

    • B. 

      125 Joules

    • C. 

      5 Joules

    • D. 

      20 Joules

  • 2. 
    Which of the following statements are true about work?
    • A. 

      Work is a form of energy.

    • B. 

      A Watt is the standard metric unit of work.

    • C. 

      Work is a time-based quantity; it is dependent upon how fast a force displaces an object.

    • D. 

      None of the above.

  • 3. 
    Which of the following statements are true about potential energy?
    • A. 

      Moving objects cannot have potential energy.

    • B. 

      Both gravitational and elastic potential energy are dependent upon the mass of an object.

    • C. 

      Potential energy is the energy stored in an object due to its position.

    • D. 

      None of the above.

  • 4. 
    An arrow is drawn back so that 50 Joules of potential energy is stored in the stretched bow and string. When released, the arrow will have a kinetic energy of ____ Joules. 
    • A. 

      50

    • B. 

      More than 50

    • C. 

      Less than 50

    • D. 

      None of the above.

  • 5. 
    A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of ____, but different amounts of ____.
    • A. 

      Work, power

    • B. 

      Force, work

    • C. 

      Energy, work

    • D. 

      None of the above.

  • 6. 
    What is kinetic energy?
    • A. 

      The energy an object has due to its motion

    • B. 

      The stored energy of an object due to its position or condition

    • C. 

      The energy an object might have if it existed

  • 7. 
    What would have the greatest kinetic energy?
    • A. 

      A car driving down a hill

    • B. 

      A person running down a hill

    • C. 

      A ball rolling down a hill

  • 8. 
    A force that causes a change in motion is ...
    • A. 

      Momentum

    • B. 

      Balanced

    • C. 

      Inertia

    • D. 

      Unbalanced

  • 9. 
    All of the forces that act on an object add up to equal...
    • A. 

      Net Force

    • B. 

      Inertia

    • C. 

      Acceleration

    • D. 

      Mass

  • 10. 
    A force that acts in opposition to motion is called...
    • A. 

      Gravity

    • B. 

      Friction

    • C. 

      Push

    • D. 

      Pull

  • 11. 
    The units for Power are?
    • A. 

      Watts

    • B. 

      Hertz

    • C. 

      Pascals

    • D. 

      Decibels

  • 12. 
    If an object has kinetic energy, then it also must have _____.    
    • A. 

      Speed/velocity

    • B. 

      Impulse

    • C. 

      Acceleration

    • D. 

      Force

  • 13. 
    The tendency of an object to resist changes in its velocity is called:
    • A. 

      Friction

    • B. 

      Static Friction

    • C. 

      Kinetic Friction

    • D. 

      Inertia

  • 14. 
    In order for work to be done there must be _________________________.
    • A. 

      Mass

    • B. 

      Power

    • C. 

      Movement parallel to force

    • D. 

      Time

  • 15. 
    Your "weight" is properly defined as
    • A. 

      The amount of material of which you are composed

    • B. 

      The gravitational force which Earth exerts on you

    • C. 

      The gravitational force you exert on Earth

    • D. 

      The force you exert on a set of bathroom scales

    • E. 

      None of the above

  • 16. 
    A push or a pull on matter is called a ...
    • A. 

      Inerita

    • B. 

      Mass

    • C. 

      Acceleration

    • D. 

      Force

  • 17. 
    Forces that do not cause changes in motion are ....
    • A. 

      Momentum

    • B. 

      Balanced

    • C. 

      Inertia

    • D. 

      Unbalanced

  • 18. 
    How much matter is in an object is measured by
    • A. 

      Volume

    • B. 

      Mass

    • C. 

      Temperature

    • D. 

      Weight

  • 19. 
    Newton's 2nd Law is about...
    • A. 

      Force, Mass, and Acceleration

    • B. 

      Volume

    • C. 

      Momentum

    • D. 

      Inertia

  • 20. 
    If an object is moving at a constant velocity, the forces on it are:-
    • A. 

      Unequal

    • B. 

      Resolved

    • C. 

      Forwards

    • D. 

      Balanced

    • E. 

      Opposite

  • 21. 
    If a bicycle and rider of mass 80kg is accelerating at 1.5m/s2 the force pushing it is:-
    • A. 

      0.02N

    • B. 

      81.5N

    • C. 

      120N

    • D. 

      120m

    • E. 

      120kg

  • 22. 
    A motorcyclist of mass 250kg accelerates from rest to 20m/s in 4s. What is the force from the engine?
    • A. 

      1250N

    • B. 

      50N

    • C. 

      1000N

    • D. 

      5000N

    • E. 

      20000N

  • 23. 
    A seatbelt brings a passenger to a stop from 12m/s in just 2s. If the passenger has a mass of 60kg, what is the force exerted by the seatbelt?
    • A. 

      720N

    • B. 

      360N

    • C. 

      10N

    • D. 

      2.5N

    • E. 

      0.25N

  • 24. 
    Which of the following conditions have to be true when a parachutist reaches Terminal Velocity
    • A. 

      The forces on her must be balanced

    • B. 

      Her weight must be greater than air resistance

    • C. 

      Her weight must be less than air resistance

    • D. 

      Her speed must be greater than her weight

    • E. 

      Her speed must be less than air resistance

  • 25. 
    Does the speedometer of a car read average speed or instantaneous speed? 
    • A. 

      Average speed

    • B. 

      Instantaneous speed

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