Electronics Worksheet: Electrical Safety

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

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