Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 285 · 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.Which of these is safe? (a) fly a kite near wires (b) use mains for a project (c) open a phone charger (d) stay away from pylons
2. 2.🔍 Which is the odd one out? (a) touch a switch when wet (b) touch a fallen wire (c) open a phone charger (d) fly kites in open fields
3. 3.⚠️ 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
4. 4.Which of these is not safe? (a) dry your hands first (b) use a cable with cuts (c) keep drinks far away (d) build with an adult near
5. 5.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
6. 6.Which of these is safe? (a) touch a fallen wire (b) use mains for a project (c) keep drinks far away (d) poke things in a socket
7. 7.Which of these is safe? (a) touch a fallen wire (b) take cells out after use (c) use mains for a project (d) open a phone charger
8. 8.Which of these is safe? (a) poke things in a socket (b) use a cable with cuts (c) fly kites in open fields (d) climb an electric pole
9. 9.🔍 Which is the odd one out? (a) keep drinks far away (b) fly a kite near wires (c) stop if a part gets hot (d) build with an adult near
10. 10.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
11. 11.🔍 Which is the odd one out? (a) poke things in a socket (b) fly a kite near wires (c) use a cable with cuts (d) build with an adult near
12. 12.🔍 Which is the odd one out? (a) open a phone charger (b) use a cable with cuts (c) touch a switch when wet (d) keep drinks far away
13. 13.🔍 Which is the odd one out? (a) touch a fallen wire (b) fly kites in open fields (c) stay away from pylons (d) keep drinks far away
14. 14.True or false: to fly kites in open fields is not safe. (a) False (b) True
15. 15.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) an inverter socket (c) a small battery pack (d) a wall socket
16. 16.True or false: to open a phone charger is not safe. (a) False (b) True
17. 17.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
18. 18.Which of these is safe? (a) use mains for a project (b) throw cells in a fire (c) touch a switch when wet (d) use small battery cells
19. 19.Which of these is not safe? (a) keep drinks far away (b) take cells out after use (c) use small battery cells (d) touch a fallen wire
20. 20.True or false: to poke things in a socket is not safe. (a) True (b) False
21. 21.Which of these is not safe? (a) keep drinks far away (b) climb an electric pole (c) take cells out after use (d) dry your hands first
22. 22.🔍 Which is the odd one out? (a) throw cells in a fire (b) take cells out after use (c) build with an adult near (d) use small battery cells
23. 23.🔍 Which is the odd one out? (a) use mains for a project (b) throw cells in a fire (c) use small battery cells (d) touch a fallen wire
24. 24.🔍 Which is the odd one out? (a) use small battery cells (b) keep drinks far away (c) stay away from pylons (d) open a phone charger
25. 25.Which of these is not safe? (a) dry your hands first (b) poke things in a socket (c) fly kites in open fields (d) build with an adult near
26. 26.True or false: to open a phone charger is safe. (a) True (b) False
27. 27.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
28. 28.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
29. 29.🔍 Which is the odd one out? (a) fly kites in open fields (b) stop if a part gets hot (c) climb an electric pole (d) take cells out after use
30. 30.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
31. 31.Which of these is not safe? (a) keep drinks far away (b) use small battery cells (c) use mains for a project (d) stay away from pylons
32. 32.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) nobody (d) a trusted adult
33. 33.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
34. 34.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a safe circuit (c) a parallel circuit (d) an open circuit
35. 35.True or false: to use a cable with cuts is not safe. (a) True (b) False
36. 36.True or false: to touch a switch when wet is not safe. (a) False (b) True
37. 37.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
38. 38.True or false: to use small battery cells is not safe. (a) False (b) True
39. 39.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a long wire (c) a plug top (d) a fuse or MCB
40. 40.Which of these is not safe? (a) dry your hands first (b) stay away from pylons (c) fly a kite near wires (d) keep drinks far away

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