Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 436 · 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 is the odd one out? (a) open a phone charger (b) fly a kite near wires (c) fly kites in open fields (d) climb an electric pole
2. 2.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a small battery pack (c) a wall socket (d) a mains extension board
3. 3.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
4. 4.🔍 Which is the odd one out? (a) use mains for a project (b) poke things in a socket (c) fly a kite near wires (d) stop if a part gets hot
5. 5.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
6. 6.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
7. 7.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a plug top (d) a bulb
8. 8.Which of these is safe? (a) open a phone charger (b) climb an electric pole (c) take cells out after use (d) touch a fallen wire
9. 9.🔍 Which is the odd one out? (a) take cells out after use (b) touch a switch when wet (c) throw cells in a fire (d) climb an electric pole
10. 10.True or false: to use mains for a project is safe. (a) True (b) False
11. 11.True or false: to dry your hands first is not safe. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) dry your hands first (b) take cells out after use (c) build with an adult near (d) open a phone charger
13. 13.Which of these is safe? (a) poke things in a socket (b) use a cable with cuts (c) use mains for a project (d) fly kites in open fields
14. 14.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
15. 15.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 230 V (d) 1.5 V
16. 16.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
17. 17.Which of these is not safe? (a) dry your hands first (b) keep drinks far away (c) take cells out after use (d) use mains for a project
18. 18.True or false: to use small battery cells is safe. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) dry your hands first (b) use small battery cells (c) fly kites in open fields (d) use mains for a project
20. 20.🔍 Which is the odd one out? (a) stop if a part gets hot (b) throw cells in a fire (c) dry your hands first (d) use small battery cells
21. 21.True or false: to touch a switch when wet is not safe. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) touch a fallen wire (b) touch a switch when wet (c) stay away from pylons (d) climb an electric pole
23. 23.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
24. 24.Which of these is safe? (a) throw cells in a fire (b) open a phone charger (c) build with an adult near (d) use mains for a project
25. 25.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
26. 26.True or false: to climb an electric pole is not safe. (a) False (b) True
27. 27.Which of these is safe? (a) use mains for a project (b) use small battery cells (c) fly a kite near wires (d) touch a switch when wet
28. 28.Which of these is safe? (a) poke things in a socket (b) use a cable with cuts (c) fly a kite near wires (d) keep drinks far away
29. 29.⚠️ 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 safe circuit (d) a short circuit
30. 30.🔍 Which is the odd one out? (a) fly a kite near wires (b) fly kites in open fields (c) use small battery cells (d) dry your hands first
31. 31.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) touch a fallen wire (d) build with an adult near
32. 32.True or false: to fly a kite near wires is safe. (a) False (b) True
33. 33.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it is just untidy (c) it spoils the paint (d) water makes it cold
34. 34.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
35. 35.🔍 Which is the odd one out? (a) stay away from pylons (b) stop if a part gets hot (c) take cells out after use (d) climb an electric pole
36. 36.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pull them by the hand (c) shout for an adult (d) pour water on them
37. 37.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
38. 38.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
39. 39.Which of these is safe? (a) dry your hands first (b) climb an electric pole (c) use a cable with cuts (d) touch a switch when wet
40. 40.🔍 Which is the odd one out? (a) touch a switch when wet (b) fly a kite near wires (c) use a cable with cuts (d) use small battery cells

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