Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 579 · 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 long wire (d) a bulb
2. 2.Which of these is not safe? (a) build with an adult near (b) keep drinks far away (c) throw cells in a fire (d) stop if a part gets hot
3. 3.Which of these is safe? (a) use small battery cells (b) poke things in a socket (c) climb an electric pole (d) touch a switch when wet
4. 4.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) pull them by the hand (c) wait and watch (d) shout for an adult
5. 5.⚠️ 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
6. 6.True or false: to touch a fallen wire is not safe. (a) False (b) True
7. 7.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
8. 8.🔍 Which is the odd one out? (a) open a phone charger (b) keep drinks far away (c) dry your hands first (d) take cells out after use
9. 9.Which of these is safe? (a) use a cable with cuts (b) climb an electric pole (c) touch a switch when wet (d) stop if a part gets hot
10. 10.True or false: to stop if a part gets hot is safe. (a) True (b) False
11. 11.True or false: to poke things in a socket is safe. (a) False (b) True
12. 12.True or false: to use mains for a project is safe. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) stay away from pylons (b) climb an electric pole (c) throw cells in a fire (d) touch a fallen wire
14. 14.True or false: to dry your hands first is safe. (a) False (b) True
15. 15.Which of these is not safe? (a) build with an adult near (b) use a cable with cuts (c) stay away from pylons (d) dry your hands first
16. 16.Which of these is not safe? (a) build with an adult near (b) stay away from pylons (c) fly a kite near wires (d) stop if a part gets hot
17. 17.🔍 Which is the odd one out? (a) use small battery cells (b) build with an adult near (c) keep drinks far away (d) throw cells in a fire
18. 18.🔍 Which is the odd one out? (a) fly kites in open fields (b) use small battery cells (c) poke things in a socket (d) build with an adult near
19. 19.🔍 Which is the odd one out? (a) keep drinks far away (b) build with an adult near (c) fly kites in open fields (d) use a cable with cuts
20. 20.Which of these is safe? (a) open a phone charger (b) use a cable with cuts (c) dry your hands first (d) throw cells in a fire
21. 21.True or false: to dry your hands first is not safe. (a) False (b) True
22. 22.True or false: to use mains for a project is not safe. (a) True (b) False
23. 23.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
24. 24.True or false: to fly a kite near wires is safe. (a) False (b) True
25. 25.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it is just untidy (c) it spoils the paint (d) water carries current
26. 26.True or false: to keep drinks far away is not safe. (a) True (b) False
27. 27.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) a stranger online (d) nobody
28. 28.Which of these is not safe? (a) keep drinks far away (b) build with an adult near (c) touch a switch when wet (d) dry your hands first
29. 29.Which of these is safe? (a) touch a fallen wire (b) use a cable with cuts (c) stay away from pylons (d) open a phone charger
30. 30.True or false: to fly kites in open fields is not safe. (a) False (b) True
31. 31.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
32. 32.Which of these is not safe? (a) build with an adult near (b) fly kites in open fields (c) climb an electric pole (d) keep drinks far away
33. 33.Which of these is safe? (a) climb an electric pole (b) keep drinks far away (c) touch a switch when wet (d) use mains for a project
34. 34.🔍 Which is the odd one out? (a) touch a switch when wet (b) stay away from pylons (c) build with an adult near (d) dry your hands first
35. 35.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
36. 36.⚠️ 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) an open circuit (d) a safe circuit
37. 37.Which of these is safe? (a) use mains for a project (b) climb an electric pole (c) build with an adult near (d) use a cable with cuts
38. 38.True or false: to use a cable with cuts is safe. (a) False (b) True
39. 39.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
40. 40.🔍 Which is the odd one out? (a) open a phone charger (b) touch a switch when wet (c) poke things in a socket (d) use small battery cells

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