Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 690 · 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.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
2. 2.🔍 Which is the odd one out? (a) climb an electric pole (b) keep drinks far away (c) open a phone charger (d) use mains for a project
3. 3.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
4. 4.Which of these is safe? (a) use mains for a project (b) open a phone charger (c) use small battery cells (d) throw cells in a fire
5. 5.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
6. 6.True or false: to climb an electric pole is not safe. (a) False (b) True
7. 7.⚠️ 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
8. 8.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
9. 9.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
10. 10.Which of these is safe? (a) touch a fallen wire (b) throw cells in a fire (c) dry your hands first (d) touch a switch when wet
11. 11.Which of these is not safe? (a) dry your hands first (b) fly kites in open fields (c) open a phone charger (d) use small battery cells
12. 12.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
13. 13.Which of these is not safe? (a) use small battery cells (b) use a cable with cuts (c) stay away from pylons (d) keep drinks far away
14. 14.🔍 Which is the odd one out? (a) stay away from pylons (b) build with an adult near (c) use small battery cells (d) use a cable with cuts
15. 15.Which of these is not safe? (a) take cells out after use (b) fly a kite near wires (c) stop if a part gets hot (d) use small battery cells
16. 16.True or false: to take cells out after use is safe. (a) False (b) True
17. 17.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
18. 18.🔍 Which is the odd one out? (a) poke things in a socket (b) use mains for a project (c) open a phone charger (d) dry your hands first
19. 19.True or false: to touch a fallen wire is safe. (a) False (b) True
20. 20.Which of these is not safe? (a) stay away from pylons (b) build with an adult near (c) throw cells in a fire (d) take cells out after use
21. 21.🔍 Which is the odd one out? (a) keep drinks far away (b) use small battery cells (c) stop if a part gets hot (d) climb an electric pole
22. 22.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) nobody (d) a stranger online
23. 23.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a plug top (c) a bulb (d) a fuse or MCB
24. 24.True or false: to throw cells in a fire is safe. (a) False (b) True
25. 25.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
26. 26.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
27. 27.Which of these is not safe? (a) stop if a part gets hot (b) keep drinks far away (c) poke things in a socket (d) dry your hands first
28. 28.True or false: to stop if a part gets hot is not safe. (a) False (b) True
29. 29.Which of these is safe? (a) climb an electric pole (b) stop if a part gets hot (c) open a phone charger (d) use a cable with cuts
30. 30.Which of these is safe? (a) poke things in a socket (b) fly kites in open fields (c) touch a switch when wet (d) use a cable with cuts
31. 31.🔍 Which is the odd one out? (a) touch a switch when wet (b) fly a kite near wires (c) build with an adult near (d) poke things in a socket
32. 32.⚠️ 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
33. 33.🔍 Which is the odd one out? (a) stay away from pylons (b) dry your hands first (c) open a phone charger (d) use small battery cells
34. 34.🔍 Which is the odd one out? (a) climb an electric pole (b) fly a kite near wires (c) stop if a part gets hot (d) use mains for a project
35. 35.⚠️ 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) wait and watch (d) shout for an adult
36. 36.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
37. 37.True or false: to fly a kite near wires is not safe. (a) False (b) True
38. 38.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
39. 39.🔍 Which is the odd one out? (a) dry your hands first (b) touch a fallen wire (c) use small battery cells (d) keep drinks far away
40. 40.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a parallel circuit (c) a short circuit (d) a safe circuit

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