Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 642 · 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.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 230 V (d) 12 V
2. 2.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
3. 3.🔍 Which is the odd one out? (a) take cells out after use (b) touch a fallen wire (c) climb an electric pole (d) touch a switch when wet
4. 4.Which of these is not safe? (a) use small battery cells (b) stop if a part gets hot (c) use mains for a project (d) dry your hands first
5. 5.Which of these is not safe? (a) use small battery cells (b) stop if a part gets hot (c) take cells out after use (d) climb an electric pole
6. 6.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
7. 7.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
8. 8.Which of these is safe? (a) fly a kite near wires (b) climb an electric pole (c) use small battery cells (d) poke things in a socket
9. 9.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
10. 10.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a small battery pack (c) a mains extension board (d) a wall socket
11. 11.True or false: to fly a kite near wires is safe. (a) False (b) True
12. 12.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
13. 13.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) a stranger online (d) nobody
14. 14.Which of these is safe? (a) use a cable with cuts (b) touch a switch when wet (c) keep drinks far away (d) use mains for a project
15. 15.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
16. 16.Which of these is not safe? (a) use small battery cells (b) touch a fallen wire (c) keep drinks far away (d) fly kites in open fields
17. 17.Which of these is not safe? (a) build with an adult near (b) use small battery cells (c) throw cells in a fire (d) dry your hands first
18. 18.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a safe circuit (c) an open circuit (d) a parallel circuit
19. 19.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
20. 20.True or false: to dry your hands first is safe. (a) False (b) True
21. 21.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
22. 22.🔍 Which is the odd one out? (a) poke things in a socket (b) dry your hands first (c) open a phone charger (d) fly a kite near wires
23. 23.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
24. 24.🔍 Which is the odd one out? (a) throw cells in a fire (b) stop if a part gets hot (c) fly a kite near wires (d) poke things in a socket
25. 25.True or false: to use mains for a project is safe. (a) False (b) True
26. 26.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
27. 27.Which of these is safe? (a) poke things in a socket (b) touch a fallen wire (c) fly kites in open fields (d) throw cells in a fire
28. 28.True or false: to take cells out after use is not safe. (a) True (b) False
29. 29.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
30. 30.🔍 Which is the odd one out? (a) stay away from pylons (b) take cells out after use (c) fly kites in open fields (d) touch a switch when wet
31. 31.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
32. 32.True or false: to build with an adult near is not safe. (a) True (b) False
33. 33.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it is just untidy (d) it spoils the paint
34. 34.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
35. 35.True or false: to stay away from pylons is safe. (a) False (b) True
36. 36.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
37. 37.Which of these is safe? (a) use mains for a project (b) take cells out after use (c) throw cells in a fire (d) touch a switch when wet
38. 38.🔍 Which is the odd one out? (a) take cells out after use (b) fly kites in open fields (c) stay away from pylons (d) use a cable with cuts
39. 39.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) take cells out after use (d) use mains for a project
40. 40.True or false: to stay away from pylons is not safe. (a) False (b) True

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