Quiz  /  Physics Class 12 MCQ Questions With Answers

  • 1. 
    Name the scientist shown in picture

  • Albert Einstein
  • Sir Isaac Newton

  • 2. 
    Ball pen works on principle of

  • Boyle's law
  • Newton's law
  • Viscosity
  • Capillarity and surface tension

  • 3. 
    Impulse has the same unit as

  • Force
  • Kg f
  • Newton
  • Momentum

  • 4. 
    In order to determine the emission spectra of an unknown gas, which of the following would be most helpful?

  • The emission spectra peer elements for comparison
  • Discharge tubes with different concentrations of the unknown
  • A periodic table indicating the groups of elements
  • A table showing the wavelengths of different colors

  • 5. 
    How do solar panels work?

  • Sun hits the solar panel and releases quarks
  • Light hits the solar panel and releases photons
  • Photons hit the solar panel and release electrons
  • Electrons jump energy levels and release photons

  • 6. 
    In nuclear fission, some mass is converted to energy. This causes -

  • final mass to be less than initial mass
  • final mas to be more than initial mass
  • final mass to be equal to initial mass

  • 7. 
    How does a star form?

  • Contraction of a large amount of gas into heavier element by way of nuclear fusion
  • Contraction of a large amount of gas into heavier element by way of nuclear fission
  • Expansion of large amount of gas by nuclear fission
  • Expansion of large amount of gas by nuclear fusion

  • 8. 
    Under the standard model, what are protons and neutrons composed of?

  • electrons
  • quarks
  • atoms
  • neutrons

  • 9. 
    What is the net force?

  • 17 N Right
  • 3 N Right
  • 3 N Left
  • 17 N Left

  • 10. 
    True or false: Heat moves from the cooler object to a warmer object

  • True
  • False

  • 11. 
    Units of velocity (v)

  • m/s2
  • m/s
  • N
  • kg m/s

  • 12. 
    You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

  • 60 N right
  • 10 N left
  • 60 N right
  • 50 N left

  • 13. 
    Recall the equation to calculate the change in heat (Thermal Energy) of an equation: ∆Q = mc∆TIf ∆Q = 100 Jm = 10 g ∆T = 2 °CWhat is c (in J/kgK) ?

  • 20
  • 5
  • 25
  • 200

  • 14. 
    Units of momentum (p)

  • kg m/s
  • kg
  • m/s
  • Ns

  • 15. 
    Temperature is a measure of the...

  • total energy in a substance
  • total kinetic energy in a substance
  • average potential energy in a substance
  • average kinetic energy of molecules in a substance

  • 16. 
    When you see something that is stationary or not moving what should you think?

  • Unbalanced
  • Balanced
  • Kinetic
  • Work

  • 17. 
    Unit of displacement (x or d)

  • m/s2
  • kg
  • m
  • m/s

  • 18. 
    How much heat is absorbed when 355g of water goes from 25-45 degrees Celsius? The specific heat of water is 4180 J/kg.K

  • 21945 J
  • 21945 g
  • 29678 J
  • 29678 g

  • 19. 
    The transfer of thermal energy between objects of different temperatures is called...

  • temperature
  • heat
  • internal energy
  • none of these

  • 20. 
    Units of Force (F)

  • s
  • kg
  • m
  • N

  • 21. 
    Heat always transfers from hot to cold.

  • True
  • False

  • 22. 
    Which cools at a faster rate, a pot of boiling water left at room temperature or a same-sized pot of warm water left at room temperature?

  • boiling water
  • warm water
  • both cool at an equal rate

  • 23. 
    If a man and woman push each other in opposite directions at both 9 N, what is the net force?

  • 81 N
  • 18 N
  • 1 N
  • 0 N

  • 24. 
    When you see the word "MOVING" what should you think?

  • Unbalanced
  • Balanced
  • Potential Energy
  • No Work

  • 25. 
    Peanut ran 50 meters in 10 seconds. What was Peanut's average speed?

  • 2 m/s
  • 5 km/h
  • 5 m/s
  • 5 m/s North

  • 26. 
    12 kilograms = ___ grams

  • 1000
  • 12000
  • 12
  • 120

  • 27. 
    How do binding forces in atomic nuclei affect the amount of energy in nuclear fission versus nuclear fusion?

  • There is a larger difference in binding forces in nuclear fission.
  • There is a larger difference in binding forces in nuclear fusion
  • The products have a greater mass than the reactants in fission
  • Binding forces do have an effect on nuclear reactions
Report Question
warning
access_time
  Time