Electricity Homework Practice
| # | Answer |
|---|---|
| 1 | Electricity: energy that powers things; Circuit: a path that electricity follows; Battery: a device that stores electrical energy; Switch: a device that opens or closes a circuit. |
| 2 | circuit |
| 3 | A) Electricity can flow through a closed circuit. |
| 4 | Possible answers: lights, computer, projector, fan, speaker, smart board. |
| 5 | A switch opens or closes a circuit, which stops or allows electricity to flow. |
| 6 | 4, 2, 3, 1 |
| 7 | The battery provides the electrical energy needed for the circuit. Without the battery, electricity cannot flow and the bulb will not light. |
| 8 | Electricity moves through a closed circuit from start to finish without breaks. |
| 9 | Possible answers: Do not touch plugs with wet hands; do not put objects into outlets; ask an adult for help with cords; turn off devices before unplugging them. |
| 10 | Example answer: Electricity can make many machines work. A battery gives energy to a circuit. When I turn on the switch, the circuit closes and the electricity can flow. |