Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 23 · 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 mains for a project? (a) safe (b) not safe
2. 2.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
3. 3.🔍 Which is the odd one out? (a) climb an electric pole (b) touch a switch when wet (c) open a phone charger (d) take cells out after use
4. 4.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
5. 5.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
6. 6.Which of these is not safe? (a) dry your hands first (b) fly kites in open fields (c) keep drinks far away (d) climb an electric pole
7. 7.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a long wire (d) a fuse or MCB
8. 8.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
9. 9.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
10. 10.🔍 Which is the odd one out? (a) build with an adult near (b) stop if a part gets hot (c) keep drinks far away (d) open a phone charger
11. 11.Which of these is safe? (a) dry your hands first (b) throw cells in a fire (c) use a cable with cuts (d) poke things in a socket
12. 12.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a short circuit (c) a safe circuit (d) a parallel circuit
13. 13.🔍 Which is the odd one out? (a) throw cells in a fire (b) build with an adult near (c) use mains for a project (d) touch a switch when wet
14. 14.🔍 Which is the odd one out? (a) fly kites in open fields (b) build with an adult near (c) touch a switch when wet (d) dry your hands first
15. 15.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a small battery pack (d) a wall socket
16. 16.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
17. 17.True or false: to keep drinks far away is not safe. (a) False (b) True
18. 18.Which of these is safe? (a) touch a fallen wire (b) use small battery cells (c) use a cable with cuts (d) throw cells in a fire
19. 19.🔍 Which is the odd one out? (a) use mains for a project (b) touch a switch when wet (c) climb an electric pole (d) stop if a part gets hot
20. 20.True or false: to stop if a part gets hot is safe. (a) True (b) False
21. 21.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
22. 22.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) use mains for a project (d) build with an adult near
23. 23.True or false: to fly kites in open fields is safe. (a) False (b) True
24. 24.True or false: to take cells out after use is not safe. (a) True (b) False
25. 25.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
26. 26.True or false: to fly kites in open fields is not safe. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) dry your hands first (b) fly kites in open fields (c) use mains for a project (d) take cells out after use
28. 28.True or false: to poke things in a socket is not safe. (a) True (b) False
29. 29.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
30. 30.True or false: to stay away from pylons is not safe. (a) False (b) True
31. 31.True or false: to touch a fallen wire is safe. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) fly kites in open fields (b) keep drinks far away (c) take cells out after use (d) use a cable with cuts
33. 33.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it is just untidy (c) water carries current (d) it spoils the paint
34. 34.Which of these is safe? (a) throw cells in a fire (b) build with an adult near (c) fly a kite near wires (d) use mains for a project
35. 35.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 12 V (c) 9 V (d) 1.5 V
36. 36.Which of these is not safe? (a) build with an adult near (b) fly a kite near wires (c) dry your hands first (d) fly kites in open fields
37. 37.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
38. 38.Which of these is safe? (a) use mains for a project (b) stop if a part gets hot (c) climb an electric pole (d) touch a fallen wire
39. 39.🔍 Which is the odd one out? (a) touch a fallen wire (b) poke things in a socket (c) open a phone charger (d) fly kites in open fields
40. 40.True or false: to use a cable with cuts is safe. (a) False (b) True

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