Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 618 · 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.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it spoils the paint (c) water carries current (d) it is just untidy
2. 2.True or false: to stop if a part gets hot is safe. (a) True (b) False
3. 3.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
4. 4.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
5. 5.True or false: to open a phone charger is safe. (a) False (b) True
6. 6.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a safe circuit (d) a short circuit
7. 7.True or false: to keep drinks far away is safe. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) use small battery cells (b) use mains for a project (c) dry your hands first (d) build with an adult near
9. 9.True or false: to touch a fallen wire is safe. (a) False (b) True
10. 10.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
11. 11.True or false: to build with an adult near is safe. (a) False (b) True
12. 12.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) nobody (d) a trusted adult
13. 13.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a bulb (c) a plug top (d) a long wire
14. 14.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) use a cable with cuts (d) keep drinks far away
15. 15.Which of these is not safe? (a) keep drinks far away (b) stay away from pylons (c) touch a fallen wire (d) build with an adult near
16. 16.True or false: to use small battery cells is not safe. (a) True (b) False
17. 17.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
18. 18.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a wall socket (c) an inverter socket (d) a mains extension board
19. 19.True or false: to throw cells in a fire is safe. (a) True (b) False
20. 20.Which of these is not safe? (a) take cells out after use (b) use a cable with cuts (c) dry your hands first (d) fly kites in open fields
21. 21.True or false: to poke things in a socket is safe. (a) True (b) False
22. 22.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 12 V (c) 230 V (d) 1.5 V
23. 23.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use small battery cells (c) dry your hands first (d) open a phone charger
24. 24.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
25. 25.🔍 Which is the odd one out? (a) throw cells in a fire (b) touch a fallen wire (c) stop if a part gets hot (d) poke things in a socket
26. 26.Which of these is safe? (a) open a phone charger (b) stay away from pylons (c) touch a fallen wire (d) poke things in a socket
27. 27.Which of these is not safe? (a) fly kites in open fields (b) use small battery cells (c) use mains for a project (d) build with an adult near
28. 28.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
29. 29.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
30. 30.Which of these is safe? (a) poke things in a socket (b) climb an electric pole (c) touch a fallen wire (d) use small battery cells
31. 31.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
32. 32.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
33. 33.True or false: to use mains for a project is not safe. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) poke things in a socket (b) touch a switch when wet (c) fly a kite near wires (d) dry your hands first
35. 35.True or false: to build with an adult near is not safe. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) stay away from pylons (b) fly kites in open fields (c) keep drinks far away (d) touch a fallen wire
37. 37.Which of these is not safe? (a) fly kites in open fields (b) take cells out after use (c) climb an electric pole (d) stay away from pylons
38. 38.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) pull them by the hand (c) pour water on them (d) wait and watch
39. 39.Which of these is safe? (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
40. 40.🔍 Which is the odd one out? (a) fly a kite near wires (b) keep drinks far away (c) use small battery cells (d) take cells out after use

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