Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 5 · 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 power source should children use for electronics projects? (a) an inverter socket (b) a wall socket (c) a small battery pack (d) a mains extension board
2. 2.🔍 Which is the odd one out? (a) take cells out after use (b) touch a switch when wet (c) stay away from pylons (d) stop if a part gets hot
3. 3.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
4. 4.🔍 Which is the odd one out? (a) build with an adult near (b) climb an electric pole (c) take cells out after use (d) use small battery cells
5. 5.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
6. 6.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a plug top (c) a bulb (d) a long wire
7. 7.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) shout for an adult (c) pull them by the hand (d) wait and watch
8. 8.Which of these is safe? (a) poke things in a socket (b) climb an electric pole (c) use a cable with cuts (d) stay away from pylons
9. 9.True or false: to fly kites in open fields is safe. (a) True (b) False
10. 10.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
11. 11.True or false: to poke things in a socket is safe. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) keep drinks far away (b) touch a fallen wire (c) touch a switch when wet (d) poke things in a socket
13. 13.Which of these is not safe? (a) open a phone charger (b) dry your hands first (c) keep drinks far away (d) use small battery cells
14. 14.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
15. 15.True or false: to climb an electric pole is not safe. (a) True (b) False
16. 16.True or false: to touch a switch when wet is safe. (a) False (b) True
17. 17.Which of these is not safe? (a) use a cable with cuts (b) keep drinks far away (c) stay away from pylons (d) build with an adult near
18. 18.True or false: to build with an adult near is not safe. (a) False (b) True
19. 19.Which of these is safe? (a) open a phone charger (b) build with an adult near (c) use a cable with cuts (d) touch a fallen wire
20. 20.🔍 Which is the odd one out? (a) stay away from pylons (b) use small battery cells (c) poke things in a socket (d) stop if a part gets hot
21. 21.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
22. 22.⚠️ 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
23. 23.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
24. 24.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
25. 25.🔍 Which is the odd one out? (a) take cells out after use (b) stop if a part gets hot (c) build with an adult near (d) open a phone charger
26. 26.Which of these is not safe? (a) stay away from pylons (b) stop if a part gets hot (c) touch a fallen wire (d) use small battery cells
27. 27.Which of these is not safe? (a) stay away from pylons (b) use small battery cells (c) take cells out after use (d) fly a kite near wires
28. 28.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 230 V (c) 12 V (d) 9 V
29. 29.True or false: to fly kites in open fields is not safe. (a) False (b) True
30. 30.True or false: to use small battery cells is not safe. (a) True (b) False
31. 31.True or false: to take cells out after use is safe. (a) True (b) False
32. 32.Which of these is safe? (a) fly a kite near wires (b) touch a fallen wire (c) use small battery cells (d) climb an electric pole
33. 33.True or false: to use mains for a project is safe. (a) False (b) True
34. 34.True or false: to use a cable with cuts is safe. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) use a cable with cuts (b) build with an adult near (c) climb an electric pole (d) fly a kite near wires
36. 36.🔍 Which is the odd one out? (a) open a phone charger (b) climb an electric pole (c) stop if a part gets hot (d) throw cells in a fire
37. 37.⚠️ 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
38. 38.True or false: to touch a fallen wire is not safe. (a) True (b) False
39. 39.Which of these is safe? (a) use a cable with cuts (b) poke things in a socket (c) fly kites in open fields (d) use mains for a project
40. 40.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe

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