Design brief: Design and make a product that uses the 'transformation of electricity' as an essential feature of its operation.
In groups, use this table to review uses of electricity. Identify the need addressed by the product or system and then energy transformations involved in its operation.
| Product/system | Need/purpose | Electricity transformation |
|---|---|---|
| E.g. Home security alarm | Warn off intruders Product people and property |
Sensor (light/sound energy) Electrical & sound energy |
| Vacuum | ||
| Stove | ||
| Solar garden lights | ||
| Television | ||
| Torch |