Quiz  /  Electric Traction Class 4 MCQ Questions With Answers

  • 1. 
    A positive ion is an atom with more electrons than protons

  • TRUE
  • FALSE

  • 2. 
    The main function of capacitor is to ......

  • supply energy to the circuit
  • decrease the voltage difference between capacitor plates
  • store charges in capacitor
  • All of above

  • 3. 
    ____________ is the ability to cause change.

  • Energy
  • Force
  • Friction
  • Motion

  • 4. 
    A material that slows or stops the flow of energy, such as thermal energy, electricity and sound.

  • electric current
  • radiation
  • condutor
  • insulator

  • 5. 
    A material through which heats or electricity flows easily.

  • electric current
  • radiation
  • condutor
  • insulator

  • 6. 
    Electricity flows well through "conductors." A good example of a conductor is ___________________.

  • metal
  • wood

  • 7. 
    What is an ion?

  • an atom with a positive or negative charge
  • an atom with more neutrons than electrons
  • an atom with no electrons
  • None of these

  • 8. 
    __________ is stored energy.

  • Potential
  • Kinetic
  • None of the above
  • All of the above

  • 9. 
    What kind of energy is in a moving skateboard?

  • Potential
  • Kinetic

  • 10. 
    Resistor

  • A flow of electricity through a conductor
  • a path through which electricity can flow
  • a device that can open or close a circuit
  • an object in an electrical circuit that resists the flow of energy

  • 11. 
    Electricity does not flow well through insulators. A good example of an insulator is _________________.

  • plastic
  • metal

  • 12. 
    It is a reserve of chemical energy that can be transformed into electrical energ

  • battery
  • utilizer
  • wire
  • All of above

  • 13. 
    If an object has more positive than negative charges, its electrical charge is...

  • positive
  • negative
  • neutral or no charge
  • opposite

  • 14. 
    Normally there are as many electrons as protons in the atom.

  • TRUE
  • FALSE

  • 15. 
    Static electricity occurs because...

  • of thunder
  • of humid air
  • of neutral particles adding up
  • of a buildup of charges on an object.
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