Electrical sensors: design (non-statutory)
I can design a simple electrical circuit to detect water levels.
Electrical sensors: design (non-statutory)
I can design a simple electrical circuit to detect water levels.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- There are sensors all around us to detect changes in things like temperature, motion, moisture, light, distance etc.
- Sensors are used in everyday appliances such as washing machines, lights, burglar and fire alarms.
- Strict safety rules must be followed when planning to use electrical components near water.
- Engineers generate ideas to invent, design, and build objects that matter.
Keywords
Switch - A switch is part of an electrical circuit that can stop or allow electricity to flow.
Circuit - An electrical circuit is a closed loop or path that electricity can flow around to make an appliance work.
Sensor - A sensor is a device that can detect and monitor changes.
Detect - To detect something is to discover or notice it.
Design - To design something is to make a plan and a drawing describing how it could be built.
Common misconception
For safety reasons, electrical circuits are never used in systems or appliances which involve the use of or are used near water.
Slides will discuss how engineers plan for the safe use of some electrical appliances near or with water. Pupils will design their own circuit to be used near water.
Equipment
This is a design lesson, but it would help if the pupils have access to a range of items that could be used to create a sensor and circuit to monitor water levels in a well. See additional materials.
Content guidance
- Exploration of objects
Supervision
Adult supervision recommended
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
