Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 258 · 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.True or false: to build with an adult near is not safe. (a) True (b) False
2. 2.Which of these is not safe? (a) use small battery cells (b) use mains for a project (c) dry your hands first (d) fly kites in open fields
3. 3.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) water makes it cold (d) it spoils the paint
4. 4.🔍 Which is the odd one out? (a) dry your hands first (b) build with an adult near (c) use small battery cells (d) climb an electric pole
5. 5.True or false: to fly a kite near wires is safe. (a) False (b) True
6. 6.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
7. 7.🔍 Which is the odd one out? (a) open a phone charger (b) use mains for a project (c) touch a fallen wire (d) take cells out after use
8. 8.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
9. 9.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 230 V (c) 9 V (d) 12 V
10. 10.True or false: to throw cells in a fire is safe. (a) False (b) True
11. 11.True or false: to open a phone charger is safe. (a) True (b) False
12. 12.True or false: to dry your hands first is safe. (a) True (b) False
13. 13.True or false: to dry your hands first is not safe. (a) True (b) False
14. 14.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
15. 15.Which of these is not safe? (a) stay away from pylons (b) keep drinks far away (c) use small battery cells (d) open a phone charger
16. 16.⚠️ 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
17. 17.True or false: to poke things in a socket is not safe. (a) True (b) False
18. 18.Which of these is safe? (a) use a cable with cuts (b) touch a switch when wet (c) use mains for a project (d) dry your hands first
19. 19.Which of these is safe? (a) poke things in a socket (b) use a cable with cuts (c) build with an adult near (d) touch a fallen wire
20. 20.⚠️ 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
21. 21.True or false: to touch a fallen wire is safe. (a) False (b) True
22. 22.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
23. 23.True or false: to build with an adult near is safe. (a) False (b) True
24. 24.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
25. 25.Which of these is not safe? (a) stop if a part gets hot (b) stay away from pylons (c) touch a switch when wet (d) build with an adult near
26. 26.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) use a cable with cuts (d) use small battery cells
27. 27.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
28. 28.True or false: to use small battery cells is not safe. (a) True (b) False
29. 29.Which of these is not safe? (a) keep drinks far away (b) fly kites in open fields (c) use small battery cells (d) throw cells in a fire
30. 30.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
31. 31.Which of these is not safe? (a) dry your hands first (b) use small battery cells (c) fly kites in open fields (d) climb an electric pole
32. 32.🔍 Which is the odd one out? (a) poke things in a socket (b) fly kites in open fields (c) touch a fallen wire (d) use a cable with cuts
33. 33.🔍 Which is the odd one out? (a) use mains for a project (b) touch a fallen wire (c) dry your hands first (d) climb an electric pole
34. 34.🔍 Which is the odd one out? (a) open a phone charger (b) fly kites in open fields (c) keep drinks far away (d) use small battery cells
35. 35.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
36. 36.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
37. 37.Which of these is safe? (a) keep drinks far away (b) use mains for a project (c) touch a fallen wire (d) use a cable with cuts
38. 38.⚠️ 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
39. 39.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
40. 40.True or false: to climb an electric pole is safe. (a) True (b) False

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