Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 382 · 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.⚠️ 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
2. 2.Which of these is safe? (a) climb an electric pole (b) take cells out after use (c) use a cable with cuts (d) use mains for a project
3. 3.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
4. 4.True or false: to stop if a part gets hot is not safe. (a) True (b) False
5. 5.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) shout for an adult (c) pull them by the hand (d) wait and watch
6. 6.🔍 Which is the odd one out? (a) build with an adult near (b) throw cells in a fire (c) use mains for a project (d) climb an electric pole
7. 7.Which of these is safe? (a) stop if a part gets hot (b) use a cable with cuts (c) climb an electric pole (d) fly a kite near wires
8. 8.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
9. 9.🔍 Which is the odd one out? (a) use small battery cells (b) poke things in a socket (c) use mains for a project (d) climb an electric pole
10. 10.🔍 Which is the odd one out? (a) dry your hands first (b) open a phone charger (c) stay away from pylons (d) keep drinks far away
11. 11.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a plug top (c) a long wire (d) a bulb
12. 12.True or false: to touch a switch when wet is safe. (a) False (b) True
13. 13.Which of these is safe? (a) throw cells in a fire (b) touch a switch when wet (c) fly a kite near wires (d) dry your hands first
14. 14.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
15. 15.🔍 Which is the odd one out? (a) keep drinks far away (b) use small battery cells (c) dry your hands first (d) climb an electric pole
16. 16.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) nobody (d) a younger child
17. 17.Which of these is not safe? (a) fly a kite near wires (b) take cells out after use (c) keep drinks far away (d) build with an adult near
18. 18.Which of these is not safe? (a) stay away from pylons (b) use a cable with cuts (c) keep drinks far away (d) dry your hands first
19. 19.Which of these is safe? (a) build with an adult near (b) touch a fallen wire (c) use mains for a project (d) climb an electric pole
20. 20.True or false: to touch a fallen wire is not safe. (a) False (b) True
21. 21.True or false: to fly kites in open fields is safe. (a) True (b) False
22. 22.True or false: to poke things in a socket is safe. (a) True (b) False
23. 23.Which of these is not safe? (a) fly kites in open fields (b) stop if a part gets hot (c) touch a fallen wire (d) use small battery cells
24. 24.Which of these is safe? (a) use a cable with cuts (b) use mains for a project (c) use small battery cells (d) open a phone charger
25. 25.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use a cable with cuts (c) use small battery cells (d) stay away from pylons
26. 26.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
27. 27.Which of these is safe? (a) touch a fallen wire (b) fly kites in open fields (c) use mains for a project (d) touch a switch when wet
28. 28.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
29. 29.Which of these is not safe? (a) stop if a part gets hot (b) stay away from pylons (c) dry your hands first (d) climb an electric pole
30. 30.Which of these is not safe? (a) dry your hands first (b) keep drinks far away (c) use small battery cells (d) throw cells in a fire
31. 31.True or false: to dry your hands first is not safe. (a) True (b) False
32. 32.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
33. 33.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 9 V (c) 1.5 V (d) 12 V
34. 34.⚠️ 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
35. 35.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
36. 36.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
37. 37.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) water makes it cold (c) it is just untidy (d) water carries current
38. 38.True or false: to open a phone charger is not safe. (a) True (b) False
39. 39.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
40. 40.True or false: to use small battery cells is not safe. (a) True (b) False

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