Please solve the questions like om the book use diagrams

Physics

ScanSolve AI Answer

here are the energy flow diagrams for the appliances:

ACTIVITY 7: Draw a flow diagram to show the input and output of energy.

2. Use a flow diagram to show the input and output of energy for each appliance.

  • Kettle: Input Energy: Electrical energy Appliance: Kettle Output Energy: Heat energy (to water)

    Flow Diagram:
    Electrical energy →\rightarrow Kettle →\rightarrow Heat energy

  • Wind-up radio: Input Energy: Movement energy (from winding) Appliance: Wind-up radio Output Energy: Sound energy

    Flow Diagram:
    Movement energy →\rightarrow Wind-up radio →\rightarrow Sound energy

  • Iron: Input Energy: Electrical energy Appliance: Iron Output Energy: Heat energy (to clothes)

    Flow Diagram:
    Electrical energy →\rightarrow Iron →\rightarrow Heat energy

  • Fan: Input Energy: Electrical energy Appliance: Fan Output Energy: Kinetic energy (of air)

    Flow Diagram:
    Electrical energy →\rightarrow Fan →\rightarrow Kinetic energy

  • Solar lighting system: Input Energy: Light energy (from Sun) Appliance: Solar lighting system Output Energy: Light energy (at night)

    Flow Diagram:
    Light energy →\rightarrow Solar lighting system →\rightarrow Light energy

  • Torch: Input Energy: Chemical energy (from battery) Appliance: Torch Output Energy: Light energy

    Flow Diagram:
    Chemical energy →\rightarrow Torch →\rightarrow Light energy

3. Do some research to find out about another appliance that uses energy directly from the Sun.

  • Solar Calculator: Input Energy: Light energy (from Sun) Appliance: Solar Calculator Output Energy: Electrical energy (to power calculator) + Light energy (for display)

    Flow Diagram:
    Light energy →\rightarrow Solar Calculator →\rightarrow Electrical energy + Light energy

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