Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 999 · 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.True or false: to throw cells in a fire is safe. (a) True (b) False
3. 3.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
4. 4.Which of these is safe? (a) poke things in a socket (b) take cells out after use (c) touch a fallen wire (d) open a phone charger
5. 5.Which of these is not safe? (a) fly kites in open fields (b) dry your hands first (c) touch a fallen wire (d) stop if a part gets hot
6. 6.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
7. 7.True or false: to use a cable with cuts is not safe. (a) False (b) True
8. 8.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
9. 9.True or false: to open a phone charger is not safe. (a) True (b) False
10. 10.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
11. 11.True or false: to take cells out after use is safe. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) throw cells in a fire (b) take cells out after use (c) stay away from pylons (d) fly kites in open fields
13. 13.True or false: to fly a kite near wires is not safe. (a) True (b) False
14. 14.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
15. 15.Which of these is safe? (a) throw cells in a fire (b) touch a switch when wet (c) build with an adult near (d) climb an electric pole
16. 16.Which of these is not safe? (a) stay away from pylons (b) build with an adult near (c) climb an electric pole (d) use small battery cells
17. 17.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a plug top (c) a bulb (d) a long wire
18. 18.True or false: to stay away from pylons is not safe. (a) True (b) False
19. 19.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) keep drinks far away (d) touch a fallen wire
20. 20.Which of these is safe? (a) dry your hands first (b) poke things in a socket (c) touch a fallen wire (d) fly a kite near wires
21. 21.Which of these is not safe? (a) stop if a part gets hot (b) build with an adult near (c) keep drinks far away (d) throw cells in a fire
22. 22.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a trusted adult (c) a stranger online (d) a younger child
23. 23.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
24. 24.True or false: to fly kites in open fields is not safe. (a) True (b) False
25. 25.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) pour water on them (c) wait and watch (d) pull them by the hand
26. 26.Which of these is safe? (a) throw cells in a fire (b) fly kites in open fields (c) touch a fallen wire (d) use a cable with cuts
27. 27.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
28. 28.True or false: to use small battery cells is safe. (a) False (b) True
29. 29.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
30. 30.Which of these is not safe? (a) stay away from pylons (b) fly a kite near wires (c) take cells out after use (d) dry your hands first
31. 31.🔍 Which is the odd one out? (a) stay away from pylons (b) keep drinks far away (c) open a phone charger (d) fly kites in open fields
32. 32.True or false: to use mains for a project is not safe. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) keep drinks far away (b) take cells out after use (c) build with an adult near (d) climb an electric pole
34. 34.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it spoils the paint (c) it is just untidy (d) water carries current
35. 35.🔍 Which is the odd one out? (a) use a cable with cuts (b) throw cells in a fire (c) take cells out after use (d) fly a kite near wires
36. 36.True or false: to fly kites in open fields is safe. (a) False (b) True
37. 37.True or false: to poke things in a socket is safe. (a) False (b) True
38. 38.Which of these is safe? (a) throw cells in a fire (b) stay away from pylons (c) use mains for a project (d) poke things in a socket
39. 39.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 12 V (c) 230 V (d) 1.5 V
40. 40.True or false: to climb an electric pole is not safe. (a) True (b) False

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