Nsc07 First Formal Assessment Physics 2

30 Questions | Total Attempts: 379

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Physics Quizzes & Trivia

This assessment covers the first topics in physics 2. Please answer the quiz in real time. Password is spuqc.


Questions and Answers
  • 1. 
    Kinetic energy and potential energy are two types of
    • A. 

      Electrical energy

    • B. 

      Nuclear energy

    • C. 

      Mechanical energy

    • D. 

      Solar energy

  • 2. 
      Which form of energy does the flowing water possess?
    • A. 

      Potential energy

    • B. 

      Electrical energy

    • C. 

      Kinetic energy

    • D. 

      Chemical energy

  • 3. 
    A body of mass 2 kg is dropped from a height of 1m. Its kinetic energy as it touches the ground is _______
    • A. 

      4.33 J

    • B. 

      15.7 J

    • C. 

      15.7 N

    • D. 

      19.6 J

    • E. 

      19.6 N

  • 4. 
    A unit of power is _______
    • A. 

      Watt per second

    • B. 

      Joule

    • C. 

      Kilojoule

    • D. 

      Joule per second

  • 5. 
    Power is a measure of the _______
    • A. 

      Rate of change of momentum

    • B. 

      Force which produces motion

    • C. 

      Change of energy

    • D. 

      Rate of change of energy

    • E. 

      Change in momentum

  • 6. 
    Two objects of masses 1 x 10-3 kg and 4 x 10-3 kg have equal momentum. What is the ratio of their kinetic energies?
    • A. 

      4:1

    • B. 

      2:1

    • C. 

      16:1

    • D. 

      8:1

    • E. 

      1:1

  • 7. 
    A 40 newton object is released from a height of 10 m. Just before it hits the ground, its kinetic energy, in joules is _______
    • A. 

      4000

    • B. 

      3920

    • C. 

      2800

    • D. 

      400

    • E. 

      None of the above

  • 8. 
    If the speed of an object is doubled then its kinetic energy is _______
    • A. 

      Doubled

    • B. 

      Quadrupled

    • C. 

      Halved

    • D. 

      Tripled

  • 9. 
    A man of mass 50 kg jumps to a height of 1 m. His potential energy at the highest point is (g = 10 m/s2)
    • A. 

      50 J

    • B. 

      60 J

    • C. 

      500 J

    • D. 

      600 J

  • 10. 
    The type of energy possessed by a simple pendulum, when it is at the mean position is
    • A. 

      Kinetic energy

    • B. 

      Potential energy

    • C. 

      Potential energy + kinetic energy

    • D. 

      Sound energy

  • 11. 
    An iron sphere of mass 30 kg has the same diameter as an aluminium sphere whose mass is 10.5 kg. The spheres are dropped simultaneously from a cliff. When they are 10 m from the ground, they have the same _______.(assume air resistance is negligible)
    • A. 

      Acceleration

    • B. 

      Momentum

    • C. 

      Potential energy

    • D. 

      Kinetic energy

  • 12. 
    A 1 kg mass has a kinetic energy of 1 joule when its speed is
    • A. 

      0.45 m/s

    • B. 

      1 m/s

    • C. 

      1.4 m/s

    • D. 

      4.4 m/s

  • 13. 
    If air resistance is negligible, the sum total of potential and kinetic energies of a freely falling body _______
    • A. 

      Increases

    • B. 

      Decreases

    • C. 

      Becomes zero

    • D. 

      Remains the same

  • 14. 
    An object of mass 1 kg has potential energy of 1 joule relative to the ground when it is at a height of _______.
    • A. 

      0.102 m

    • B. 

      1 m

    • C. 

      9.8 m

    • D. 

      32 m

  • 15. 
    A young girl drags her favorite dolly by the hair at an angle of 55° to the ground for a distance of 4 m. If she pulls with a force of 3 N, what is the total work that she has done?
    • A. 

      Greater than 3 joules

    • B. 

      Less than 3 joules

    • C. 

      No work was done

    • D. 

      It depends on the sine function of the angle

  • 16. 
    Which of the following is a a scalar quantity?
    • A. 

      Temperature

    • B. 

      Force

    • C. 

      Acceleration

    • D. 

      Velocity

  • 17. 
    Which of the following is a a vector quantity?
    • A. 

      Heat

    • B. 

      Length

    • C. 

      Displacement

    • D. 

      Distance

  • 18. 
    The  number below is in scientific notation11.1 X 102  
    • A. 

      True

    • B. 

      False

  • 19. 
    The number below has five significant figures0.0110
    • A. 

      True

    • B. 

      False

  • 20. 
    Conversion of chemical energy to electrical energy occurs in
    • A. 

      Transformers

    • B. 

      Hydroelectric plants

    • C. 

      Batteries

    • D. 

      Wind power

  • 21. 
    Conversion of chemical energy to mechanical energy occurs in
    • A. 

      Light rail transits

    • B. 

      Buses

    • C. 

      Lightning

    • D. 

      Thunder

  • 22. 
    Potential energy is converted to mechanical energy in
    • A. 

      Transformers

    • B. 

      Batteries

    • C. 

      Solar cells

    • D. 

      Hydroelectric plants

  • 23. 
    Chemical energy is converted to mechanical energy; and then converted to electrical energy in
    • A. 

      Solar cells

    • B. 

      Wind turbines

    • C. 

      Wave power

    • D. 

      Generators

  • 24. 
    Energy required to move an object (mass = 10 kg)  to a height of 10 meters in joules. Your answer should be a whole number. (number lang po, wala ng units)
  • 25. 
    Two forces are acting on a stationary book on a table
    • A. 

      True

    • B. 

      False

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