Available Answers

1. 1.

   Fill in the blanks:

   1. ____________ is one of our most widely, used forms of energy.
   2. An electric cell has two terminals- ____________ and ____________.
   3. ____________ is a series of two or more cells.
   4. ____________ cells are used in calculators.
   5. ____________ produces energy when sunlight falls on it.
   6. If the filament of a bulb is broken, such a bulb is called ____________.
   7. ____________ is used to switch on or off the electric bulb.
   8. The rate of flow charges is called an ____________.
   9. The rate of flow charges is called an ____________.
   10. The human body is a very good ____________ of electricity.
   11. Eraser and plastic scale are ____________ of electricity.
2. 2.

   Tick (√) the correct answer:

   1. Rubber is
      1. conductor
      2. insulator
      3. semiconductor
      4. none of these
   2. The closed path in which the current flows is called a/an
      1. conductor
      2. insulator
      3. electric circuit
      4. battery
   3. Which of the following produces electricity when sunlight falls on it?
      1. Button cell
      2. Solar cell
      3. Battery
      4. None of these
   4. Electric wires are covered with
      1. conductors
      2. insulators
      3. both of these
      4. none of these
3. 3.

   Fill in the blanks:

   1. An electric cell has two terminals- _____________ and _____________.
   2. The combination of two or more cells is called a _____________.
   3. _____________ cells are used in watches and videogames.
   4. The tiny wire inside a bulb is called _____________.
   5. The arrangement of a complete path shows an _____________.
4. 4.

   Write 'T' for true and 'F' for false:

   1. A battery is a series of two of or more cells.
   2. Electric current can flow through metals.
   3. A button cell is used in a torch.
   4. Zinc is used as the positive terminal in an electric cell.
   5. Electric current can flow through a fused bulb.
5. 5.

   What is a battery?