Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 130 · 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.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a plug top (c) a fuse or MCB (d) a long wire
2. 2.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
3. 3.Which of these is safe? (a) open a phone charger (b) use mains for a project (c) use a cable with cuts (d) build with an adult near
4. 4.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
5. 5.Which of these is not safe? (a) stop if a part gets hot (b) keep drinks far away (c) use a cable with cuts (d) take cells out after use
6. 6.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) use a cable with cuts (d) use small battery cells
7. 7.Which of these is safe? (a) use mains for a project (b) use small battery cells (c) throw cells in a fire (d) open a phone charger
8. 8.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
9. 9.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
10. 10.⚠️ 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
11. 11.True or false: to use a cable with cuts is safe. (a) False (b) True
12. 12.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
13. 13.Which of these is not safe? (a) fly kites in open fields (b) take cells out after use (c) build with an adult near (d) poke things in a socket
14. 14.True or false: to touch a fallen wire is safe. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) build with an adult near (b) climb an electric pole (c) use mains for a project (d) poke things in a socket
16. 16.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a younger child (c) a stranger online (d) a trusted adult
17. 17.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
18. 18.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
19. 19.True or false: to fly kites in open fields is safe. (a) True (b) False
20. 20.True or false: to dry your hands first is not safe. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) use mains for a project (b) dry your hands first (c) poke things in a socket (d) open a phone charger
22. 22.🔍 Which is the odd one out? (a) throw cells in a fire (b) fly a kite near wires (c) touch a fallen wire (d) fly kites in open fields
23. 23.🔍 Which is the odd one out? (a) open a phone charger (b) poke things in a socket (c) touch a switch when wet (d) use small battery cells
24. 24.Which of these is not safe? (a) fly a kite near wires (b) use small battery cells (c) stop if a part gets hot (d) build with an adult near
25. 25.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
26. 26.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) it spoils the paint (d) water makes it cold
27. 27.Which of these is safe? (a) use a cable with cuts (b) open a phone charger (c) stay away from pylons (d) throw cells in a fire
28. 28.Which of these is not safe? (a) build with an adult near (b) fly kites in open fields (c) open a phone charger (d) dry your hands first
29. 29.🔍 Which is the odd one out? (a) stay away from pylons (b) use mains for a project (c) build with an adult near (d) fly kites in open fields
30. 30.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a parallel circuit (c) a safe circuit (d) a short circuit
31. 31.True or false: to use mains for a project is safe. (a) True (b) False
32. 32.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
33. 33.True or false: to open a phone charger is safe. (a) False (b) True
34. 34.Which of these is not safe? (a) stay away from pylons (b) fly kites in open fields (c) stop if a part gets hot (d) touch a fallen wire
35. 35.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
36. 36.True or false: to use small battery cells is not safe. (a) False (b) True
37. 37.True or false: to stay away from pylons is safe. (a) False (b) True
38. 38.Which of these is not safe? (a) dry your hands first (b) climb an electric pole (c) stop if a part gets hot (d) use small battery cells
39. 39.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
40. 40.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe

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