Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 273 · 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.True or false: to take cells out after use is safe. (a) True (b) False
2. 2.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) pour water on them (c) wait and watch (d) shout for an adult
3. 3.Which of these is not safe? (a) fly kites in open fields (b) poke things in a socket (c) stay away from pylons (d) dry your hands first
4. 4.True or false: to stop if a part gets hot is safe. (a) True (b) False
5. 5.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) an inverter socket (d) a mains extension board
6. 6.True or false: to throw cells in a fire is not safe. (a) False (b) True
7. 7.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
8. 8.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
9. 9.Which of these is not safe? (a) keep drinks far away (b) use mains for a project (c) fly kites in open fields (d) stay away from pylons
10. 10.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
11. 11.True or false: to fly kites in open fields is not safe. (a) True (b) False
12. 12.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
13. 13.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
14. 14.🔍 Which is the odd one out? (a) touch a switch when wet (b) keep drinks far away (c) stay away from pylons (d) take cells out after use
15. 15.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
16. 16.True or false: to build with an adult near is not safe. (a) True (b) False
17. 17.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
18. 18.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
19. 19.⚠️ 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
20. 20.True or false: to use small battery cells is not safe. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) use a cable with cuts (b) poke things in a socket (c) throw cells in a fire (d) use small battery cells
22. 22.Which of these is safe? (a) throw cells in a fire (b) build with an adult near (c) touch a switch when wet (d) climb an electric pole
23. 23.🔍 Which is the odd one out? (a) use small battery cells (b) keep drinks far away (c) throw cells in a fire (d) take cells out after use
24. 24.⚠️ 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
25. 25.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
26. 26.🔍 Which is the odd one out? (a) build with an adult near (b) dry your hands first (c) stay away from pylons (d) poke things in a socket
27. 27.Which of these is safe? (a) throw cells in a fire (b) fly a kite near wires (c) climb an electric pole (d) use small battery cells
28. 28.⚠️ 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
29. 29.🔍 Which is the odd one out? (a) use mains for a project (b) open a phone charger (c) build with an adult near (d) touch a switch when wet
30. 30.Which of these is safe? (a) use mains for a project (b) use a cable with cuts (c) stop if a part gets hot (d) touch a switch when wet
31. 31.True or false: to touch a switch when wet is not safe. (a) True (b) False
32. 32.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
33. 33.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use mains for a project (c) touch a switch when wet (d) use a cable with cuts
34. 34.Which of these is not safe? (a) dry your hands first (b) use a cable with cuts (c) stay away from pylons (d) use small battery cells
35. 35.True or false: to keep drinks far away is safe. (a) True (b) False
36. 36.True or false: to fly a kite near wires is safe. (a) True (b) False
37. 37.True or false: to throw cells in a fire is safe. (a) True (b) False
38. 38.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
39. 39.True or false: to stay away from pylons is safe. (a) False (b) True
40. 40.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe

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