Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 137 · 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.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a fuse or MCB (d) a plug top
2. 2.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
3. 3.⚠️ 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
4. 4.True or false: to dry your hands first is not safe. (a) True (b) False
5. 5.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) an inverter socket (c) a mains extension board (d) a wall socket
6. 6.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pour water on them (c) pull them by the hand (d) shout for an adult
7. 7.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
8. 8.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) stop if a part gets hot (d) use a cable with cuts
9. 9.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
10. 10.Which of these is not safe? (a) take cells out after use (b) use small battery cells (c) stop if a part gets hot (d) climb an electric pole
11. 11.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) fly kites in open fields (d) use a cable with cuts
12. 12.🔍 Which is the odd one out? (a) throw cells in a fire (b) poke things in a socket (c) open a phone charger (d) fly kites in open fields
13. 13.🔍 Which is the odd one out? (a) keep drinks far away (b) build with an adult near (c) stop if a part gets hot (d) climb an electric pole
14. 14.True or false: to touch a switch when wet is safe. (a) False (b) True
15. 15.True or false: to use small battery cells is safe. (a) True (b) False
16. 16.True or false: to poke things in a socket is not safe. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) use mains for a project (b) touch a fallen wire (c) keep drinks far away (d) open a phone charger
18. 18.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
19. 19.Which of these is safe? (a) throw cells in a fire (b) dry your hands first (c) open a phone charger (d) climb an electric pole
20. 20.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 12 V (c) 1.5 V (d) 230 V
21. 21.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) a trusted adult (d) nobody
22. 22.Which of these is safe? (a) touch a switch when wet (b) use mains for a project (c) throw cells in a fire (d) keep drinks far away
23. 23.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
24. 24.Which of these is not safe? (a) poke things in a socket (b) use small battery cells (c) fly kites in open fields (d) build with an adult near
25. 25.True or false: to keep drinks far away is not safe. (a) True (b) False
26. 26.True or false: to build with an adult near is not safe. (a) True (b) False
27. 27.True or false: to throw cells in a fire is safe. (a) True (b) False
28. 28.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
29. 29.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
30. 30.Which of these is safe? (a) poke things in a socket (b) touch a switch when wet (c) stay away from pylons (d) use mains for a project
31. 31.Which of these is not safe? (a) take cells out after use (b) touch a fallen wire (c) stay away from pylons (d) dry your hands first
32. 32.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
33. 33.True or false: to stop if a part gets hot is safe. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) fly kites in open fields (b) stay away from pylons (c) touch a switch when wet (d) use small battery cells
35. 35.🔍 Which is the odd one out? (a) take cells out after use (b) fly kites in open fields (c) poke things in a socket (d) build with an adult near
36. 36.Which of these is safe? (a) use a cable with cuts (b) climb an electric pole (c) use small battery cells (d) throw cells in a fire
37. 37.🔍 Which is the odd one out? (a) use mains for a project (b) build with an adult near (c) stop if a part gets hot (d) take cells out after use
38. 38.True or false: to stay away from pylons is not safe. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) touch a switch when wet (b) touch a fallen wire (c) climb an electric pole (d) stay away from pylons
40. 40.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe

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