Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 218 · 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 power source should children use for electronics projects? (a) a wall socket (b) an inverter socket (c) a small battery pack (d) a mains extension board
2. 2.True or false: to open a phone charger is safe. (a) True (b) False
3. 3.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) use mains for a project (d) fly kites in open fields
4. 4.🔍 Which is the odd one out? (a) open a phone charger (b) take cells out after use (c) throw cells in a fire (d) use a cable with cuts
5. 5.🔍 Which is the odd one out? (a) take cells out after use (b) stay away from pylons (c) use a cable with cuts (d) build with an adult near
6. 6.Which of these is safe? (a) open a phone charger (b) touch a switch when wet (c) touch a fallen wire (d) keep drinks far away
7. 7.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a safe circuit (d) a short circuit
8. 8.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water carries current (d) water makes it cold
9. 9.True or false: to touch a fallen wire is not safe. (a) True (b) False
10. 10.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
11. 11.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) stop if a part gets hot (d) use a cable with cuts
12. 12.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
13. 13.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
14. 14.🔍 Which is the odd one out? (a) open a phone charger (b) touch a fallen wire (c) stay away from pylons (d) touch a switch when wet
15. 15.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
16. 16.Which of these is safe? (a) use a cable with cuts (b) poke things in a socket (c) open a phone charger (d) dry your hands first
17. 17.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
18. 18.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
19. 19.True or false: to touch a switch when wet is safe. (a) False (b) True
20. 20.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a bulb (d) a plug top
21. 21.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
22. 22.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 9 V (c) 12 V (d) 1.5 V
23. 23.Which of these is not safe? (a) stay away from pylons (b) dry your hands first (c) use a cable with cuts (d) use small battery cells
24. 24.🔍 Which is the odd one out? (a) open a phone charger (b) use mains for a project (c) use a cable with cuts (d) use small battery cells
25. 25.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a younger child (c) a stranger online (d) a trusted adult
26. 26.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
27. 27.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) wait and watch (c) pour water on them (d) shout for an adult
28. 28.True or false: to touch a fallen wire is safe. (a) False (b) True
29. 29.Which of these is not safe? (a) dry your hands first (b) stop if a part gets hot (c) take cells out after use (d) touch a switch when wet
30. 30.🔍 Which is the odd one out? (a) stay away from pylons (b) take cells out after use (c) keep drinks far away (d) open a phone charger
31. 31.True or false: to touch a switch when wet is not safe. (a) False (b) True
32. 32.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
33. 33.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
34. 34.Which of these is safe? (a) take cells out after use (b) use mains for a project (c) open a phone charger (d) touch a fallen wire
35. 35.Which of these is not safe? (a) build with an adult near (b) stop if a part gets hot (c) use small battery cells (d) poke things in a socket
36. 36.🔍 Which is the odd one out? (a) fly a kite near wires (b) take cells out after use (c) build with an adult near (d) stay away from pylons
37. 37.True or false: to poke things in a socket is safe. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) build with an adult near (b) climb an electric pole (c) stay away from pylons (d) keep drinks far away
39. 39.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
40. 40.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe

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