Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 275 · 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.True or false: to use mains for a project is safe. (a) True (b) False
2. 2.Which of these is safe? (a) open a phone charger (b) use mains for a project (c) build with an adult near (d) poke things in a socket
3. 3.Which of these is safe? (a) touch a switch when wet (b) climb an electric pole (c) use a cable with cuts (d) stay away from pylons
4. 4.🔍 Which is the odd one out? (a) touch a switch when wet (b) use small battery cells (c) climb an electric pole (d) open a phone charger
5. 5.True or false: to build with an adult near is not safe. (a) True (b) False
6. 6.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
7. 7.True or false: to dry your hands first is not safe. (a) False (b) True
8. 8.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 230 V (c) 1.5 V (d) 9 V
9. 9.Which of these is safe? (a) open a phone charger (b) poke things in a socket (c) use mains for a project (d) fly kites in open fields
10. 10.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
11. 11.Which of these is not safe? (a) stay away from pylons (b) use small battery cells (c) build with an adult near (d) open a phone charger
12. 12.Which of these is safe? (a) fly a kite near wires (b) use mains for a project (c) keep drinks far away (d) poke things in a socket
13. 13.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
14. 14.🔍 Which is the odd one out? (a) build with an adult near (b) fly a kite near wires (c) use small battery cells (d) stay away from pylons
15. 15.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
16. 16.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
17. 17.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) use mains for a project (d) build with an adult near
18. 18.True or false: to use mains for a project is not safe. (a) False (b) True
19. 19.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
20. 20.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
21. 21.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
22. 22.True or false: to open a phone charger is not safe. (a) False (b) True
23. 23.Which of these is safe? (a) touch a switch when wet (b) use small battery cells (c) throw cells in a fire (d) use a cable with cuts
24. 24.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a safe circuit (c) a short circuit (d) an open circuit
25. 25.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
26. 26.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a trusted adult (d) a younger child
27. 27.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
28. 28.True or false: to keep drinks far away is not safe. (a) True (b) False
29. 29.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
30. 30.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it spoils the paint (c) water carries current (d) it is just untidy
31. 31.🔍 Which is the odd one out? (a) stop if a part gets hot (b) take cells out after use (c) dry your hands first (d) open a phone charger
32. 32.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) pull them by the hand (c) pour water on them (d) wait and watch
33. 33.True or false: to throw cells in a fire is not safe. (a) False (b) True
34. 34.True or false: to stop if a part gets hot is safe. (a) False (b) True
35. 35.Which of these is safe? (a) climb an electric pole (b) touch a fallen wire (c) poke things in a socket (d) stop if a part gets hot
36. 36.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
37. 37.🔍 Which is the odd one out? (a) touch a switch when wet (b) stay away from pylons (c) use mains for a project (d) poke things in a socket
38. 38.True or false: to poke things in a socket is not safe. (a) False (b) True
39. 39.Which of these is not safe? (a) keep drinks far away (b) use small battery cells (c) build with an adult near (d) use mains for a project
40. 40.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a plug top (d) a bulb

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