Electronics Worksheet: Electrical Safety

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

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