Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 705 · 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 plug top (b) a fuse or MCB (c) a bulb (d) a long wire
2. 2.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
3. 3.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 1.5 V (c) 12 V (d) 9 V
4. 4.🔍 Which is the odd one out? (a) stop if a part gets hot (b) keep drinks far away (c) touch a switch when wet (d) stay away from pylons
5. 5.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a younger child (c) nobody (d) a stranger online
6. 6.🔍 Which is the odd one out? (a) poke things in a socket (b) touch a switch when wet (c) touch a fallen wire (d) use small battery cells
7. 7.Which of these is safe? (a) dry your hands first (b) use mains for a project (c) touch a switch when wet (d) touch a fallen wire
8. 8.Which of these is safe? (a) use a cable with cuts (b) touch a switch when wet (c) use small battery cells (d) use mains for a project
9. 9.True or false: to stay away from pylons is safe. (a) False (b) True
10. 10.Which of these is not safe? (a) build with an adult near (b) use small battery cells (c) climb an electric pole (d) stop if a part gets hot
11. 11.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) an inverter socket (d) a small battery pack
12. 12.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
13. 13.True or false: to throw cells in a fire is not safe. (a) True (b) False
14. 14.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
15. 15.True or false: to stay away from pylons is not safe. (a) False (b) True
16. 16.Which of these is safe? (a) keep drinks far away (b) fly a kite near wires (c) open a phone charger (d) throw cells in a fire
17. 17.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
18. 18.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
19. 19.⚠️ 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
20. 20.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
21. 21.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
22. 22.Which of these is not safe? (a) keep drinks far away (b) build with an adult near (c) dry your hands first (d) touch a switch when wet
23. 23.True or false: to stop if a part gets hot is not safe. (a) False (b) True
24. 24.True or false: to fly kites in open fields is not safe. (a) False (b) True
25. 25.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
26. 26.Which of these is not safe? (a) dry your hands first (b) stay away from pylons (c) fly kites in open fields (d) poke things in a socket
27. 27.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
28. 28.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) build with an adult near (d) throw cells in a fire
29. 29.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
30. 30.True or false: to open a phone charger is safe. (a) False (b) True
31. 31.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) shout for an adult (c) pour water on them (d) wait and watch
32. 32.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a short circuit (c) a parallel circuit (d) an open circuit
33. 33.True or false: to use mains for a project is safe. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) fly kites in open fields (b) use small battery cells (c) fly a kite near wires (d) build with an adult near
35. 35.True or false: to take cells out after use is safe. (a) False (b) True
36. 36.True or false: to build with an adult near is not safe. (a) False (b) True
37. 37.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
38. 38.🔍 Which is the odd one out? (a) stay away from pylons (b) climb an electric pole (c) stop if a part gets hot (d) use small battery cells
39. 39.True or false: to take cells out after use is not safe. (a) True (b) False
40. 40.True or false: to dry your hands first is not safe. (a) True (b) False

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