Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 245 · 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 small battery cells? (a) not safe (b) safe
2. 2.True or false: to use small battery cells is safe. (a) True (b) False
3. 3.True or false: to use mains for a project is not safe. (a) True (b) False
4. 4.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) an inverter socket (d) a wall socket
5. 5.True or false: to build with an adult near is not safe. (a) False (b) True
6. 6.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a plug top (d) a fuse or MCB
7. 7.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
8. 8.🔍 Which is the odd one out? (a) fly kites in open fields (b) build with an adult near (c) touch a fallen wire (d) keep drinks far away
9. 9.Which of these is not safe? (a) take cells out after use (b) stay away from pylons (c) use mains for a project (d) fly kites in open fields
10. 10.True or false: to fly kites in open fields is not safe. (a) False (b) True
11. 11.Which of these is safe? (a) touch a switch when wet (b) throw cells in a fire (c) build with an adult near (d) use a cable with cuts
12. 12.Which of these is safe? (a) stay away from pylons (b) throw cells in a fire (c) touch a fallen wire (d) poke things in a socket
13. 13.Which of these is safe? (a) throw cells in a fire (b) fly a kite near wires (c) take cells out after use (d) touch a fallen wire
14. 14.🔍 Which is the odd one out? (a) use a cable with cuts (b) climb an electric pole (c) take cells out after use (d) touch a switch when wet
15. 15.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) pull them by the hand (c) shout for an adult (d) wait and watch
16. 16.True or false: to open a phone charger is safe. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) fly kites in open fields (b) touch a fallen wire (c) use mains for a project (d) touch a switch when wet
18. 18.True or false: to use a cable with cuts is safe. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) use a cable with cuts (b) dry your hands first (c) fly a kite near wires (d) use mains for a project
20. 20.🔍 Which is the odd one out? (a) stop if a part gets hot (b) take cells out after use (c) stay away from pylons (d) fly a kite near wires
21. 21.🔍 Which is the odd one out? (a) touch a fallen wire (b) use small battery cells (c) use mains for a project (d) fly a kite near wires
22. 22.🔍 Which is the odd one out? (a) open a phone charger (b) take cells out after use (c) stop if a part gets hot (d) use small battery cells
23. 23.True or false: to touch a switch when wet is not safe. (a) True (b) False
24. 24.Which of these is safe? (a) open a phone charger (b) throw cells in a fire (c) use mains for a project (d) stop if a part gets hot
25. 25.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
26. 26.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
27. 27.Which of these is safe? (a) use small battery cells (b) use mains for a project (c) poke things in a socket (d) open a phone charger
28. 28.Which of these is not safe? (a) keep drinks far away (b) throw cells in a fire (c) stay away from pylons (d) build with an adult near
29. 29.🔍 Which is the odd one out? (a) stay away from pylons (b) use a cable with cuts (c) fly a kite near wires (d) touch a switch when wet
30. 30.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
31. 31.🔍 Which is the odd one out? (a) touch a fallen wire (b) build with an adult near (c) use mains for a project (d) climb an electric pole
32. 32.Which of these is not safe? (a) stay away from pylons (b) build with an adult near (c) open a phone charger (d) dry your hands first
33. 33.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) keep drinks far away (d) touch a fallen wire
34. 34.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
35. 35.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
36. 36.True or false: to use mains for a project is safe. (a) False (b) True
37. 37.True or false: to use small battery cells is not safe. (a) True (b) False
38. 38.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
39. 39.True or false: to keep drinks far away is safe. (a) False (b) True
40. 40.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V

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