Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 406 · 40 questions

Remember (Low, dry, with an adult): Never use mains sockets (about 230 V) for projects; never open chargers or poke into sockets. Water carries current: dry hands, no drinks near circuits, no switches when wet. Use small battery cells with an adult; stop if a part gets hot; keep away from fallen wires, poles and kites near power lines.

1. 1.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a parallel circuit (c) a safe circuit (d) an open circuit
2. 2.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) climb an electric pole (d) keep drinks far away
3. 3.True or false: to use small battery cells is safe. (a) False (b) True
4. 4.Which of these is safe? (a) touch a fallen wire (b) climb an electric pole (c) use small battery cells (d) poke things in a socket
5. 5.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) stay away from pylons (d) use mains for a project
6. 6.🔍 Which is the odd one out? (a) use mains for a project (b) use small battery cells (c) open a phone charger (d) touch a fallen wire
7. 7.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
8. 8.🔍 Which is the odd one out? (a) dry your hands first (b) touch a switch when wet (c) poke things in a socket (d) climb an electric pole
9. 9.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a trusted adult (c) a younger child (d) nobody
10. 10.True or false: to climb an electric pole is safe. (a) True (b) False
11. 11.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a long wire (c) a fuse or MCB (d) a bulb
12. 12.True or false: to fly a kite near wires is safe. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) open a phone charger (b) take cells out after use (c) throw cells in a fire (d) climb an electric pole
14. 14.True or false: to poke things in a socket is not safe. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) dry your hands first (b) use a cable with cuts (c) keep drinks far away (d) stop if a part gets hot
16. 16.True or false: to stay away from pylons is not safe. (a) False (b) True
17. 17.True or false: to touch a fallen wire is safe. (a) True (b) False
18. 18.True or false: to open a phone charger is not safe. (a) False (b) True
19. 19.Which of these is safe? (a) throw cells in a fire (b) open a phone charger (c) stay away from pylons (d) touch a fallen wire
20. 20.Which of these is not safe? (a) fly kites in open fields (b) build with an adult near (c) dry your hands first (d) throw cells in a fire
21. 21.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pull them by the hand (c) shout for an adult (d) pour water on them
22. 22.True or false: to stop if a part gets hot is safe. (a) True (b) False
23. 23.True or false: to take cells out after use is not safe. (a) True (b) False
24. 24.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
25. 25.🔍 Which is the odd one out? (a) stay away from pylons (b) touch a switch when wet (c) fly kites in open fields (d) take cells out after use
26. 26.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
27. 27.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
28. 28.🔍 Which is the odd one out? (a) fly kites in open fields (b) climb an electric pole (c) use small battery cells (d) take cells out after use
29. 29.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
30. 30.Which of these is not safe? (a) fly kites in open fields (b) use small battery cells (c) fly a kite near wires (d) build with an adult near
31. 31.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
32. 32.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it is just untidy (c) it spoils the paint (d) water carries current
33. 33.True or false: to use small battery cells is not safe. (a) False (b) True
34. 34.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
35. 35.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) fly a kite near wires (d) stay away from pylons
36. 36.Which of these is safe? (a) take cells out after use (b) use a cable with cuts (c) touch a switch when wet (d) climb an electric pole
37. 37.Which of these is safe? (a) open a phone charger (b) throw cells in a fire (c) climb an electric pole (d) dry your hands first
38. 38.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
39. 39.Which of these is safe? (a) keep drinks far away (b) poke things in a socket (c) touch a fallen wire (d) use mains for a project
40. 40.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe

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