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Electricity Circuits and their Components

Science · Class 7 · All

ScienceClass 7AllEasy
Q1/15
45s

Which material is commonly used for making electric wires?

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All 15 questions in this quiz

  1. What happens when the switch is turned ON in a simple circuit?

    1. The circuit becomes complete and current flows
    2. The cell stops working
    3. The wires lose their conducting property
    4. The bulb breaks immediately

  2. Which of the following is a good conductor of electricity?

    1. Plastic
    2. Glass
    3. Copper
    4. Rubber

  3. Why does a bulb not glow in an open circuit?

    1. The bulb becomes too bright
    2. There is no battery in the circuit
    3. Electric current cannot flow through a broken path
    4. The wires become longer

  4. What type of energy is stored in a cell?

    1. Light energy
    2. Chemical energy
    3. Sound energy
    4. Heat energy

  5. Which of the following combinations is required to make a simple electric circuit?

    1. Cell, wires, switch, and bulb
    2. Bulb, fan, and motor only
    3. Plastic, wood, and rubber
    4. Magnet, iron, and wire

  6. Which device is used to check whether electric current is flowing through a circuit?

    1. Electric tester
    2. Bulb holder
    3. Fan
    4. Battery cover

  7. What is the function of connecting wires in an electric circuit?

    1. To produce electricity
    2. To provide a path for electric current
    3. To increase battery size
    4. To stop electricity flow

  8. Which of the following materials is an insulator?

    1. Copper
    2. Aluminium
    3. Iron
    4. Rubber

  9. A circuit in which electric current can flow is called a:

    1. Broken circuit
    2. Open circuit
    3. Closed circuit
    4. Plastic circuit

  10. Which of the following is an electrical appliance that converts electrical energy into light energy?

    1. Cell
    2. Bulb
    3. Switch
    4. Wire

  11. In an electric circuit, a bulb glows when:

    1. The circuit is open
    2. The wires are disconnected
    3. The circuit is complete
    4. The cell is removed

  12. Which component is used to open or close an electric circuit?

    1. Bulb
    2. Switch
    3. Cell
    4. Wire

  13. Which material is commonly used for making electric wires?

    1. Plastic
    2. Rubber
    3. Copper
    4. Wood

  14. What is required for an electric current to flow through a circuit?

    1. Open circuit
    2. Closed circuit
    3. Broken wire
    4. Insulated path

  15. Which of the following is the main source of electricity in a simple electric circuit?

    1. Switch
    2. Bulb
    3. Cell
    4. Wire