Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 215 · 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 bulb (b) a plug top (c) a long wire (d) a fuse or MCB
2. 2.🔍 Which is the odd one out? (a) throw cells in a fire (b) use mains for a project (c) stay away from pylons (d) fly a kite near wires
3. 3.🔍 Which is the odd one out? (a) use mains for a project (b) stay away from pylons (c) fly kites in open fields (d) keep drinks far away
4. 4.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
5. 5.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a wall socket (c) a mains extension board (d) an inverter socket
6. 6.True or false: to touch a switch when wet is safe. (a) True (b) False
7. 7.True or false: to fly kites in open fields is safe. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) stay away from pylons (b) poke things in a socket (c) stop if a part gets hot (d) build with an adult near
9. 9.True or false: to climb an electric pole is not safe. (a) True (b) False
10. 10.True or false: to open a phone charger is not safe. (a) False (b) True
11. 11.True or false: to touch a switch when wet is not safe. (a) True (b) False
12. 12.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 230 V (d) 1.5 V
13. 13.⚠️ 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
14. 14.Which of these is safe? (a) fly kites in open fields (b) fly a kite near wires (c) use a cable with cuts (d) poke things in a socket
15. 15.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) wait and watch (c) pull them by the hand (d) pour water on them
16. 16.True or false: to build with an adult near is not safe. (a) False (b) True
17. 17.True or false: to fly a kite near wires is not safe. (a) False (b) True
18. 18.Which of these is safe? (a) stop if a part gets hot (b) open a phone charger (c) poke things in a socket (d) throw cells in a fire
19. 19.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) a younger child (d) nobody
20. 20.True or false: to touch a fallen wire is not safe. (a) True (b) False
21. 21.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
22. 22.Which of these is safe? (a) use a cable with cuts (b) stay away from pylons (c) poke things in a socket (d) use mains for a project
23. 23.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
24. 24.🔍 Which is the odd one out? (a) stay away from pylons (b) build with an adult near (c) touch a switch when wet (d) use small battery cells
25. 25.True or false: to touch a fallen wire is safe. (a) False (b) True
26. 26.True or false: to stay away from pylons is safe. (a) False (b) True
27. 27.Which of these is not safe? (a) take cells out after use (b) keep drinks far away (c) fly kites in open fields (d) use mains for a project
28. 28.True or false: to climb an electric pole is safe. (a) False (b) True
29. 29.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
30. 30.True or false: to open a phone charger is safe. (a) False (b) True
31. 31.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
32. 32.🔍 Which is the odd one out? (a) touch a switch when wet (b) touch a fallen wire (c) climb an electric pole (d) fly kites in open fields
33. 33.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
34. 34.Which of these is not safe? (a) fly kites in open fields (b) dry your hands first (c) poke things in a socket (d) build with an adult near
35. 35.Which of these is safe? (a) poke things in a socket (b) touch a fallen wire (c) dry your hands first (d) touch a switch when wet
36. 36.Which of these is safe? (a) use mains for a project (b) use small battery cells (c) climb an electric pole (d) use a cable with cuts
37. 37.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) water makes it cold (c) water carries current (d) it is just untidy
38. 38.🔍 Which is the odd one out? (a) open a phone charger (b) poke things in a socket (c) use mains for a project (d) take cells out after use
39. 39.True or false: to use a cable with cuts is safe. (a) False (b) True
40. 40.True or false: to use mains for a project is safe. (a) True (b) False

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