Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 178 · 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 small battery pack (c) a wall socket (d) a mains extension board
2. 2.🔍 Which is the odd one out? (a) throw cells in a fire (b) stay away from pylons (c) build with an adult near (d) keep drinks far away
3. 3.Which of these is safe? (a) throw cells in a fire (b) touch a switch when wet (c) use mains for a project (d) use small battery cells
4. 4.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) pull them by the hand (c) shout for an adult (d) wait and watch
5. 5.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
6. 6.True or false: to dry your hands first is not safe. (a) True (b) False
7. 7.Which of these is safe? (a) keep drinks far away (b) poke things in a socket (c) use mains for a project (d) climb an electric pole
8. 8.True or false: to keep drinks far away is safe. (a) False (b) True
9. 9.Which of these is not safe? (a) fly a kite near wires (b) keep drinks far away (c) take cells out after use (d) build with an adult near
10. 10.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
11. 11.🔍 Which is the odd one out? (a) stay away from pylons (b) build with an adult near (c) touch a switch when wet (d) take cells out after use
12. 12.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
13. 13.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
14. 14.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
15. 15.Which of these is safe? (a) touch a fallen wire (b) throw cells in a fire (c) use mains for a project (d) take cells out after use
16. 16.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) keep drinks far away (d) use mains for a project
17. 17.True or false: to poke things in a socket is not safe. (a) False (b) True
18. 18.Which of these is safe? (a) climb an electric pole (b) use mains for a project (c) stay away from pylons (d) use a cable with cuts
19. 19.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
20. 20.True or false: to build with an adult near is safe. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) climb an electric pole (b) open a phone charger (c) poke things in a socket (d) keep drinks far away
22. 22.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
23. 23.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) use small battery cells (d) use a cable with cuts
24. 24.True or false: to open a phone charger is safe. (a) True (b) False
25. 25.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a trusted adult (c) a stranger online (d) a younger child
26. 26.🔍 Which is the odd one out? (a) touch a fallen wire (b) stop if a part gets hot (c) use a cable with cuts (d) throw cells in a fire
27. 27.🔍 Which is the odd one out? (a) use mains for a project (b) use small battery cells (c) dry your hands first (d) keep drinks far away
28. 28.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
29. 29.🔍 Which is the odd one out? (a) climb an electric pole (b) fly kites in open fields (c) take cells out after use (d) keep drinks far away
30. 30.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
31. 31.True or false: to use mains for a project is safe. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) keep drinks far away (b) dry your hands first (c) touch a fallen wire (d) stay away from pylons
33. 33.True or false: to take cells out after use is not safe. (a) True (b) False
34. 34.Which of these is not safe? (a) take cells out after use (b) keep drinks far away (c) open a phone charger (d) stay away from pylons
35. 35.🔍 Which is the odd one out? (a) fly a kite near wires (b) build with an adult near (c) use small battery cells (d) fly kites in open fields
36. 36.True or false: to touch a fallen wire is not safe. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) throw cells in a fire (b) use mains for a project (c) poke things in a socket (d) stay away from pylons
38. 38.⚠️ 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
39. 39.Which of these is safe? (a) use mains for a project (b) dry your hands first (c) poke things in a socket (d) fly a kite near wires
40. 40.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) water carries current (c) it is just untidy (d) water makes it cold

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