Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 635 · 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 is the odd one out? (a) use mains for a project (b) use a cable with cuts (c) build with an adult near (d) throw cells in a fire
2. 2.True or false: to use a cable with cuts is safe. (a) False (b) True
3. 3.Which of these is safe? (a) poke things in a socket (b) touch a fallen wire (c) stay away from pylons (d) use mains for a project
4. 4.True or false: to keep drinks far away is safe. (a) False (b) True
5. 5.True or false: to touch a switch when wet is not safe. (a) False (b) True
6. 6.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 12 V (c) 9 V (d) 1.5 V
7. 7.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
8. 8.🔍 Which is the odd one out? (a) touch a fallen wire (b) use a cable with cuts (c) stay away from pylons (d) throw cells in a fire
9. 9.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) use small battery cells (d) touch a switch when wet
10. 10.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
11. 11.True or false: to use a cable with cuts is not safe. (a) True (b) False
12. 12.Which of these is not safe? (a) use small battery cells (b) take cells out after use (c) stay away from pylons (d) use mains for a project
13. 13.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) a younger child (d) nobody
14. 14.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
15. 15.True or false: to keep drinks far away is not safe. (a) False (b) True
16. 16.Which of these is not safe? (a) fly kites in open fields (b) use small battery cells (c) take cells out after use (d) open a phone charger
17. 17.True or false: to use small battery cells is safe. (a) False (b) True
18. 18.True or false: to dry your hands first is safe. (a) True (b) False
19. 19.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
20. 20.🔍 Which is the odd one out? (a) take cells out after use (b) poke things in a socket (c) stop if a part gets hot (d) dry your hands first
21. 21.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) touch a fallen wire (d) stay away from pylons
22. 22.🔍 Which is the odd one out? (a) use a cable with cuts (b) poke things in a socket (c) touch a fallen wire (d) keep drinks far away
23. 23.⚠️ 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 short circuit (d) a safe circuit
24. 24.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
25. 25.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
26. 26.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) an inverter socket (d) a small battery pack
27. 27.Which of these is not safe? (a) use small battery cells (b) build with an adult near (c) take cells out after use (d) poke things in a socket
28. 28.🔍 Which is the odd one out? (a) touch a switch when wet (b) poke things in a socket (c) use mains for a project (d) dry your hands first
29. 29.⚠️ 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) pull them by the hand (d) wait and watch
30. 30.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water makes it cold (c) it spoils the paint (d) water carries current
31. 31.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
32. 32.True or false: to touch a fallen wire is not safe. (a) True (b) False
33. 33.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a long wire (c) a fuse or MCB (d) a bulb
34. 34.Which of these is not safe? (a) stop if a part gets hot (b) throw cells in a fire (c) take cells out after use (d) stay away from pylons
35. 35.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
36. 36.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) touch a switch when wet (d) stop if a part gets hot
37. 37.Which of these is safe? (a) use mains for a project (b) open a phone charger (c) keep drinks far away (d) climb an electric pole
38. 38.True or false: to fly kites in open fields is safe. (a) False (b) True
39. 39.Which of these is safe? (a) poke things in a socket (b) touch a switch when wet (c) fly kites in open fields (d) open a phone charger
40. 40.Which of these is safe? (a) dry your hands first (b) fly a kite near wires (c) poke things in a socket (d) throw cells in a fire

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