Lesson Worksheet: How Switches Work Science
In this worksheet, we will practice describing how a switch works in a series circuit and identifying problems when using switches.
Switches can be made from a variety of materials, including household objects. Which of these objects do you think would make a good homemade switch?
- APlastic spoon
- BMetal fork
- CWooden pencil
Fill in the blank: When a switch is , electricity flows, turning components on.
What action can we take to make the bulb light up in the electrical circuit shown?
- AChange the batteries
- BCheck the wire
- CReplace the bulb
- DClose the switch
Explain why the bulb in this electrical circuit is not working.
- ABecause wood is an electrical insulator
- BBecause wood is an electrical conductor
- CBecause the bulb is not connected to the circuit properly
- DBecause the batteries are not placed correctly
Explain why the bulbs in this electrical circuit light up.
- ABecause the switch is closed, so electricity can flow to the bulbs
- BBecause the switch is open, so electricity can flow to the bulbs
Look at the diagrams shown. In which of the circuits would the bulb light up?
- ACircuit A
- BCircuit B
Identify the switch in the electrical circuit shown.
Fill in the blank: A switch is a component of an electrical circuit that controls the of electricity to other components, turning them on and off.
Which of these numbers identifies the power button on the TV remote shown?
What is the arrow pointing to in this circuit?
- AThe batteries
- BThe light bulb
- CThe switch
- DThe wire