Quiz  /  Electric Traction Class 8 MCQ Questions With Answers

  • 1. 
    Glass, rubber, silk, and plastic are all examples of

  • Conductors
  • Insulator
  • Thermel conductivity
  • Materials

  • 2. 
    Electric charges that are different _______ each other.

  • Attract
  • Repel

  • 3. 
    The loss of an unbalanced electric charge is an

  • electric force
  • electric field
  • electric discharge
  • All of above

  • 4. 
    What is the charge of the electron

  • positive
  • no charge
  • negative
  • neutral

  • 5. 
    In a stable atom the amount of electrons is equal to the amount of

  • neutrons
  • protons
  • atomic mass
  • neutrons + protons

  • 6. 
    An object that is positively charged contains more protons than electrons.

  • True
  • False
  • I need more information
  • All of above

  • 7. 
    When objects have equal numbers of positive and negative charges, they are

  • positively charged
  • negatively charged
  • electrically neutral
  • unbalanced

  • 8. 
    Which of the following an insulator?

  • copper
  • wood
  • silver
  • salt water

  • 9. 
    A balloon has a negative charge. A glass rod has a positive charge. What will happen when the rod is brought near the balloon?

  • the balloon will be attracted to the rod
  • the balloon will remain in place
  • the balloon will be repelled by the rod
  • the balloon will spin in circles

  • 10. 
    A metal spoon is an example of _____.

  • a conductor
  • an insulator

  • 11. 
    Which of these is the electron?

  • A
  • B
  • C
  • All of above

  • 12. 
    What parts of an atom are in the nucleus?

  • Protons
  • Neutrons
  • Electrons
  • Protons and Neutrons

  • 13. 
    If an object has a net charge of +2e this means it has

  • lost 2 electrons
  • gained 2 electrons
  • lost 2 protons
  • gained 2 protons

  • 14. 
    Metals such as copper, iron, gold, and silver are ...

  • conductors
  • brittle
  • insulators
  • resistors

  • 15. 
    If a substance has an excess number of electrons on its surface, what type of charge does it have?

  • A negative charge
  • A positive charge
  • A neutral charge
  • A nuclear charge
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