Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 494 · 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 bulb (b) a fuse or MCB (c) a plug top (d) a long wire
2. 2.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) climb an electric pole (d) keep drinks far away
3. 3.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) build with an adult near (d) touch a switch when wet
4. 4.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
5. 5.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
6. 6.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
7. 7.True or false: to use mains for a project is safe. (a) True (b) False
8. 8.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
9. 9.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) nobody (d) a stranger online
10. 10.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
11. 11.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) shout for an adult (c) wait and watch (d) pour water on them
12. 12.True or false: to touch a switch when wet is not safe. (a) True (b) False
13. 13.Which of these is safe? (a) poke things in a socket (b) open a phone charger (c) touch a fallen wire (d) build with an adult near
14. 14.True or false: to touch a fallen wire is safe. (a) True (b) False
15. 15.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
16. 16.True or false: to dry your hands first is not safe. (a) False (b) True
17. 17.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
18. 18.True or false: to stop if a part gets hot is not safe. (a) True (b) False
19. 19.Which of these is not safe? (a) use small battery cells (b) fly kites in open fields (c) stay away from pylons (d) climb an electric pole
20. 20.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 12 V (d) 230 V
21. 21.True or false: to fly a kite near wires is safe. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) stop if a part gets hot (b) keep drinks far away (c) take cells out after use (d) fly a kite near wires
23. 23.True or false: to take cells out after use is safe. (a) False (b) True
24. 24.True or false: to open a phone charger is not safe. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) keep drinks far away (b) stay away from pylons (c) fly kites in open fields (d) use mains for a project
26. 26.⚠️ 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
27. 27.True or false: to climb an electric pole is not safe. (a) True (b) False
28. 28.⚠️ 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
29. 29.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it spoils the paint (d) it is just untidy
30. 30.🔍 Which is the odd one out? (a) throw cells in a fire (b) keep drinks far away (c) dry your hands first (d) fly kites in open fields
31. 31.🔍 Which is the odd one out? (a) poke things in a socket (b) fly kites in open fields (c) open a phone charger (d) fly a kite near wires
32. 32.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) use a cable with cuts (d) stay away from pylons
33. 33.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
34. 34.True or false: to use mains for a project is not safe. (a) True (b) False
35. 35.Which of these is safe? (a) fly a kite near wires (b) poke things in a socket (c) dry your hands first (d) touch a switch when wet
36. 36.True or false: to open a phone charger is safe. (a) True (b) False
37. 37.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
38. 38.🔍 Which is the odd one out? (a) touch a switch when wet (b) fly a kite near wires (c) use mains for a project (d) stop if a part gets hot
39. 39.True or false: to use small battery cells is safe. (a) False (b) True
40. 40.Which of these is safe? (a) climb an electric pole (b) poke things in a socket (c) use small battery cells (d) use a cable with cuts

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