Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 840 · 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.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 1.5 V (d) 230 V
2. 2.Which of these is not safe? (a) take cells out after use (b) use mains for a project (c) stay away from pylons (d) stop if a part gets hot
3. 3.🔍 Which is the odd one out? (a) climb an electric pole (b) stop if a part gets hot (c) touch a switch when wet (d) open a phone charger
4. 4.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) an inverter socket (d) a wall socket
5. 5.⚠️ 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
6. 6.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
7. 7.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
8. 8.True or false: to touch a fallen wire is not safe. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) build with an adult near (b) use mains for a project (c) touch a fallen wire (d) open a phone charger
10. 10.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
11. 11.Which of these is not safe? (a) fly kites in open fields (b) poke things in a socket (c) keep drinks far away (d) use small battery cells
12. 12.True or false: to poke things in a socket is safe. (a) True (b) False
13. 13.⚠️ 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
14. 14.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
15. 15.True or false: to stay away from pylons is safe. (a) True (b) False
16. 16.Which of these is safe? (a) use mains for a project (b) take cells out after use (c) touch a fallen wire (d) throw cells in a fire
17. 17.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
18. 18.True or false: to build with an adult near is safe. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) build with an adult near (b) fly a kite near wires (c) stay away from pylons (d) keep drinks far away
20. 20.Which of these is not safe? (a) dry your hands first (b) stay away from pylons (c) fly a kite near wires (d) use small battery cells
21. 21.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
22. 22.Which of these is safe? (a) touch a switch when wet (b) throw cells in a fire (c) stop if a part gets hot (d) climb an electric pole
23. 23.Which of these is not safe? (a) stay away from pylons (b) dry your hands first (c) use small battery cells (d) touch a switch when wet
24. 24.True or false: to fly kites in open fields is not safe. (a) False (b) True
25. 25.True or false: to use a cable with cuts is safe. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) use small battery cells (b) stay away from pylons (c) poke things in a socket (d) stop if a part gets hot
27. 27.True or false: to throw cells in a fire is safe. (a) False (b) True
28. 28.Which of these is not safe? (a) keep drinks far away (b) fly kites in open fields (c) stop if a part gets hot (d) use a cable with cuts
29. 29.True or false: to touch a switch when wet is not safe. (a) False (b) True
30. 30.Which of these is not safe? (a) use small battery cells (b) take cells out after use (c) climb an electric pole (d) stay away from pylons
31. 31.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it spoils the paint (c) water makes it cold (d) it is just untidy
32. 32.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a short circuit (c) a safe circuit (d) an open circuit
33. 33.🔍 Which is the odd one out? (a) stop if a part gets hot (b) fly kites in open fields (c) use small battery cells (d) touch a fallen wire
34. 34.🔍 Which is the odd one out? (a) climb an electric pole (b) fly a kite near wires (c) touch a switch when wet (d) stay away from pylons
35. 35.🔍 Which is the odd one out? (a) stop if a part gets hot (b) fly kites in open fields (c) open a phone charger (d) keep drinks far away
36. 36.Which of these is safe? (a) open a phone charger (b) use mains for a project (c) touch a switch when wet (d) dry your hands first
37. 37.True or false: to fly a kite near wires is not safe. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) climb an electric pole (b) use mains for a project (c) poke things in a socket (d) take cells out after use
39. 39.True or false: to climb an electric pole is safe. (a) True (b) False
40. 40.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe

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