Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 720 · 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) use small battery cells (b) use a cable with cuts (c) take cells out after use (d) build with an adult near
2. 2.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a safe circuit (c) a parallel circuit (d) a short circuit
3. 3.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
4. 4.Which of these is safe? (a) stop if a part gets hot (b) use mains for a project (c) fly a kite near wires (d) open a phone charger
5. 5.🔍 Which is the odd one out? (a) climb an electric pole (b) stop if a part gets hot (c) touch a switch when wet (d) use mains for a project
6. 6.True or false: to fly a kite near wires is safe. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) open a phone charger (b) keep drinks far away (c) use small battery cells (d) build with an adult near
8. 8.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water makes it cold (d) water carries current
9. 9.Which of these is not safe? (a) use small battery cells (b) poke things in a socket (c) build with an adult near (d) stop if a part gets hot
10. 10.True or false: to use mains for a project is not safe. (a) False (b) True
11. 11.Which of these is safe? (a) fly a kite near wires (b) use small battery cells (c) touch a fallen wire (d) use a cable with cuts
12. 12.True or false: to use small battery cells is not safe. (a) False (b) True
13. 13.Which of these is not safe? (a) build with an adult near (b) stop if a part gets hot (c) use mains for a project (d) keep drinks far away
14. 14.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
15. 15.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
16. 16.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
17. 17.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 9 V (c) 12 V (d) 1.5 V
18. 18.⚠️ 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
19. 19.True or false: to dry your hands first is not safe. (a) False (b) True
20. 20.Which of these is safe? (a) poke things in a socket (b) touch a switch when wet (c) dry your hands first (d) throw cells in a fire
21. 21.True or false: to take cells out after use is not safe. (a) False (b) True
22. 22.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
23. 23.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
24. 24.🔍 Which is the odd one out? (a) touch a switch when wet (b) touch a fallen wire (c) keep drinks far away (d) fly a kite near wires
25. 25.True or false: to build with an adult near is safe. (a) False (b) True
26. 26.True or false: to stop if a part gets hot is not safe. (a) False (b) True
27. 27.True or false: to open a phone charger is safe. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) fly kites in open fields (b) touch a fallen wire (c) take cells out after use (d) stay away from pylons
29. 29.🔍 Which is the odd one out? (a) build with an adult near (b) touch a switch when wet (c) stop if a part gets hot (d) stay away from pylons
30. 30.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
31. 31.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
32. 32.🔍 Which is the odd one out? (a) climb an electric pole (b) stay away from pylons (c) keep drinks far away (d) stop if a part gets hot
33. 33.🔍 Which is the odd one out? (a) throw cells in a fire (b) stay away from pylons (c) climb an electric pole (d) open a phone charger
34. 34.Which of these is not safe? (a) climb an electric pole (b) take cells out after use (c) build with an adult near (d) keep drinks far away
35. 35.Which of these is safe? (a) climb an electric pole (b) use a cable with cuts (c) build with an adult near (d) open a phone charger
36. 36.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) a mains extension board (d) an inverter socket
37. 37.Which of these is not safe? (a) build with an adult near (b) touch a fallen wire (c) stop if a part gets hot (d) take cells out after use
38. 38.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) wait and watch (c) shout for an adult (d) pull them by the hand
39. 39.🔍 Which is the odd one out? (a) fly a kite near wires (b) poke things in a socket (c) dry your hands first (d) use mains for a project
40. 40.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe

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