Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 753 · 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) open a phone charger (b) touch a fallen wire (c) build with an adult near (d) climb an electric pole
2. 2.Which of these is safe? (a) take cells out after use (b) open a phone charger (c) use mains for a project (d) throw cells in a fire
3. 3.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a bulb (d) a plug top
4. 4.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
5. 5.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a trusted adult (c) a younger child (d) a stranger online
6. 6.Which of these is not safe? (a) fly kites in open fields (b) stay away from pylons (c) dry your hands first (d) open a phone charger
7. 7.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
8. 8.🔍 Which is the odd one out? (a) climb an electric pole (b) use a cable with cuts (c) throw cells in a fire (d) build with an adult near
9. 9.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
10. 10.🔍 Which is the odd one out? (a) stay away from pylons (b) fly kites in open fields (c) use mains for a project (d) take cells out after use
11. 11.True or false: to dry your hands first is safe. (a) False (b) True
12. 12.True or false: to keep drinks far away is not safe. (a) False (b) True
13. 13.⚠️ 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
14. 14.🔍 Which is the odd one out? (a) build with an adult near (b) dry your hands first (c) touch a fallen wire (d) keep drinks far away
15. 15.Which of these is safe? (a) use mains for a project (b) poke things in a socket (c) throw cells in a fire (d) stay away from pylons
16. 16.Which of these is safe? (a) throw cells in a fire (b) poke things in a socket (c) use small battery cells (d) fly a kite near wires
17. 17.True or false: to use a cable with cuts is not safe. (a) False (b) True
18. 18.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
19. 19.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
20. 20.Which of these is not safe? (a) stop if a part gets hot (b) keep drinks far away (c) stay away from pylons (d) use a cable with cuts
21. 21.True or false: to touch a switch when wet is not safe. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) use mains for a project (b) fly a kite near wires (c) use small battery cells (d) climb an electric pole
23. 23.Which of these is safe? (a) keep drinks far away (b) use a cable with cuts (c) throw cells in a fire (d) fly a kite near wires
24. 24.True or false: to take cells out after use is safe. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) use mains for a project (b) use a cable with cuts (c) fly kites in open fields (d) fly a kite near wires
26. 26.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it is just untidy (c) water makes it cold (d) it spoils the paint
27. 27.🔍 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) stay away from pylons
28. 28.True or false: to open a phone charger is safe. (a) False (b) True
29. 29.Which of these is safe? (a) fly a kite near wires (b) touch a switch when wet (c) fly kites in open fields (d) climb an electric pole
30. 30.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 12 V (c) 9 V (d) 1.5 V
31. 31.Which of these is not safe? (a) take cells out after use (b) use small battery cells (c) use mains for a project (d) dry your hands first
32. 32.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
33. 33.⚠️ 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
34. 34.True or false: to dry your hands first is not safe. (a) True (b) False
35. 35.Which of these is safe? (a) touch a fallen wire (b) touch a switch when wet (c) fly a kite near wires (d) stop if a part gets hot
36. 36.🔍 Which is the odd one out? (a) fly kites in open fields (b) keep drinks far away (c) climb an electric pole (d) build with an adult near
37. 37.🔍 Which is the odd one out? (a) use a cable with cuts (b) touch a fallen wire (c) climb an electric pole (d) stop if a part gets hot
38. 38.True or false: to stop if a part gets hot is not safe. (a) False (b) True
39. 39.True or false: to take cells out after use is not safe. (a) True (b) False
40. 40.True or false: to use a cable with cuts is safe. (a) True (b) False

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