Quiz  /  Electrostatics Class 9 MCQ Questions With Answers

  • 1. 
    A positively charged balloon is brought near to a metal pop can. Which diagram shows the arrangement of charge on the pop can as the balloon is held near it?

  • A
  • B
  • C
  • D

  • 2. 
    An atom will become more positive by...

  • gaining an electron
  • losing an electron
  • gaining a proton
  • losing a proton

  • 3. 
    When an atom loses an electron, what type of charge does it have now?

  • positive
  • negative

  • 4. 
    What kind of particles do atoms consist ?

  • Protons
  • Neutrons
  • Electrons
  • All above is correct

  • 5. 
    There is _____________ between two protons.

  • an attractive force
  • a repulsive force
  • no force

  • 6. 
    A positively charged rod is held near the knob of a neutral electroscope. What best describes what will happen to the leaves?

  • the leaves will spread apart and be positive
  • the leaves will spread apart and be negative
  • the leaves will stay closed and be positive
  • the leaves will stay closed and be negative

  • 7. 
    What is the symbol for force?

  • F
  • f
  • N
  • n

  • 8. 
    When a silver atom looses an electron, its net charge (in coulombs) is

  • +1
  • -1
  • +1,6 x 10-19
  • -1,6 x 10-19

  • 9. 
    Force is __________ related to charge.

  • directly
  • indirectly
  • not

  • 10. 
    Which of the following is NOT located in the nucleus?

  • Proton
  • Neutron
  • Electron

  • 11. 
    Metal sphere A has a charge of +12 elementary charges and identical sphere B has a charge of +16 elementary charges. After the two spheres are brought into contact and separated, the charge on sphere A is

  • +14 elementary charges
  • +28 elementary charges
  • +2 elementary charges
  • -2 elementary charges

  • 12. 
    Where do some electrons from your hair go when you rub a balloon on your hair?

  • they get attached onto the balloon
  • they all remain on your hair
  • electrons don's usually move
  • It is the protons that flow

  • 13. 
    What are the units of distance?

  • Feet
  • Meters
  • Coulombs
  • Newtons

  • 14. 
    Grounding happens when...

  • A neutral object comes into contact with another neutral object
  • A charged object is rubbed against another charged object
  • A neutral object touches a MASSIVE conductive object
  • A charged object touches a MASSIVE conductive object

  • 15. 
    What is the symbol for distance?

  • F
  • q
  • d
  • D

  • 16. 
    Removing a static charge by providing a path to the ground is called __.

  • electric transfer
  • grounding
  • switching
  • seperation

  • 17. 
    The SI unit of charge is

  • the ampere
  • the newton
  • the coulomb
  • the joule

  • 18. 
    Which of the following is a false statement about electrostatic force.

  • Bringing charges closer together strengthen the force.
  • The electrostatic constant remains the same.
  • The values of the two charges is always the same.
  • Electrostatic force can be attractive or repulsive

  • 19. 
    A negatively charged rod touches the knob of a neutral electroscope. Which best represents the distribution of charge on the electroscope.

  • both the knob and leaves become positive
  • both the knob and leaves become negative
  • the knob becomes negative and the leaves become positive
  • the knob becomes positive and the leaves become negative

  • 20. 
    What are the two types of charges that objects may possess?

  • + and +
  • + and -
  • + and neutral
  • - and neutral

  • 21. 
    When an object gains electrons it becomes __________

  • Neutral
  • Positively charged
  • Negatively charged

  • 22. 
    If you double both charges and double the distance between them, what happens to the force?

  • The force is less than before
  • The force is more than before
  • The force remains unchanged

  • 23. 
    What is the SI unit used to measure force?

  • pounds
  • grams
  • newtons
  • friction

  • 24. 
    You rub a balloon on your hair and your hair acquires a positive charge. Where do electrons go when you rub a balloon on your hair?

  • Onto the balloon
  • Into your hair
  • Nowhere

  • 25. 
    You can only be shocked when electrons leave your body.

  • True
  • False

  • 26. 
    A piece of gold with a charge of +8 C touches a piece of silver with a charge of -2 C. What is the net charge of each after they touch?

  • +6 C
  • +3 C
  • +2 C
  • -1 C

  • 27. 
    Insulators are different from conductors in that insulators ____.

  • do not contain electrons or protons
  • do not contain any charge
  • have a weaker affinity for electrons
  • do not allow charge to freely move

  • 28. 
    _____________ is the process in which we permanently charge a conductor using an already charged insulator.

  • Friction
  • Conduction
  • Polarization
  • Induction

  • 29. 
    An object becomes positively charged by

  • losing protons
  • gaining electrons
  • losing electrons
  • gaining protons
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