Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 535 · 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) touch a switch when wet (b) build with an adult near (c) touch a fallen wire (d) fly a kite near wires
2. 2.True or false: to take cells out after use is safe. (a) True (b) False
3. 3.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a parallel circuit (c) a short circuit (d) an open circuit
4. 4.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 230 V (d) 1.5 V
5. 5.Which of these is safe? (a) open a phone charger (b) fly a kite near wires (c) use a cable with cuts (d) stop if a part gets hot
6. 6.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
7. 7.True or false: to dry your hands first is not safe. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) use a cable with cuts (b) stop if a part gets hot (c) build with an adult near (d) keep drinks far away
9. 9.Which of these is safe? (a) touch a fallen wire (b) use mains for a project (c) touch a switch when wet (d) use small battery cells
10. 10.True or false: to throw cells in a fire is safe. (a) True (b) False
11. 11.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
12. 12.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water carries current (d) water makes it cold
13. 13.True or false: to poke things in a socket is not safe. (a) True (b) False
14. 14.True or false: to dry your hands first is safe. (a) False (b) True
15. 15.Which of these is safe? (a) fly a kite near wires (b) fly kites in open fields (c) touch a fallen wire (d) poke things in a socket
16. 16.True or false: to touch a switch when wet is not safe. (a) True (b) False
17. 17.⚠️ 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
18. 18.⚠️ 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
19. 19.True or false: to touch a fallen wire is not safe. (a) False (b) True
20. 20.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) shout for an adult (c) pull them by the hand (d) pour water on them
21. 21.Which of these is not safe? (a) keep drinks far away (b) use small battery cells (c) build with an adult near (d) climb an electric pole
22. 22.🔍 Which is the odd one out? (a) build with an adult near (b) use mains for a project (c) stay away from pylons (d) stop if a part gets hot
23. 23.True or false: to use a cable with cuts is not safe. (a) True (b) False
24. 24.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
25. 25.True or false: to use a cable with cuts is safe. (a) True (b) False
26. 26.True or false: to touch a switch when wet is safe. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) fly a kite near wires (d) keep drinks far away
28. 28.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
29. 29.🔍 Which is the odd one out? (a) touch a switch when wet (b) build with an adult near (c) stop if a part gets hot (d) take cells out after use
30. 30.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
31. 31.🔍 Which is the odd one out? (a) keep drinks far away (b) poke things in a socket (c) climb an electric pole (d) throw cells in a fire
32. 32.True or false: to fly kites in open fields is safe. (a) True (b) False
33. 33.True or false: to touch a fallen wire is safe. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) climb an electric pole (b) throw cells in a fire (c) stop if a part gets hot (d) touch a switch when wet
35. 35.True or false: to keep drinks far away is not safe. (a) False (b) True
36. 36.True or false: to build with an adult near is not safe. (a) True (b) False
37. 37.True or false: to fly a kite near wires is not safe. (a) True (b) False
38. 38.True or false: to throw cells in a fire is not safe. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) dry your hands first (b) use mains for a project (c) open a phone charger (d) touch a fallen wire
40. 40.Which of these is not safe? (a) take cells out after use (b) fly a kite near wires (c) fly kites in open fields (d) dry your hands first

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