Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 683 · 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) use a cable with cuts (c) climb an electric pole (d) fly kites in open fields
2. 2.True or false: to use small battery cells is safe. (a) False (b) True
3. 3.Which of these is not safe? (a) take cells out after use (b) stop if a part gets hot (c) use small battery cells (d) open a phone charger
4. 4.True or false: to stop if a part gets hot is safe. (a) False (b) True
5. 5.Which of these is not safe? (a) build with an adult near (b) stay away from pylons (c) climb an electric pole (d) keep drinks far away
6. 6.Which of these is not safe? (a) keep drinks far away (b) take cells out after use (c) use mains for a project (d) dry your hands first
7. 7.True or false: to use small battery cells is not safe. (a) True (b) False
8. 8.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
9. 9.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) pour water on them (c) shout for an adult (d) wait and watch
10. 10.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
11. 11.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
12. 12.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
13. 13.Which of these is safe? (a) dry your hands first (b) touch a switch when wet (c) throw cells in a fire (d) use a cable with cuts
14. 14.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
15. 15.True or false: to fly kites in open fields is not safe. (a) True (b) False
16. 16.Which of these is not safe? (a) dry your hands first (b) keep drinks far away (c) build with an adult near (d) touch a switch when wet
17. 17.True or false: to dry your hands first is safe. (a) False (b) True
18. 18.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 12 V (d) 230 V
19. 19.True or false: to climb an electric pole is safe. (a) False (b) True
20. 20.Which of these is safe? (a) touch a fallen wire (b) touch a switch when wet (c) stop if a part gets hot (d) throw cells in a fire
21. 21.Which of these is not safe? (a) dry your hands first (b) poke things in a socket (c) take cells out after use (d) build with an adult near
22. 22.True or false: to open a phone charger is safe. (a) False (b) True
23. 23.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a long wire (c) a fuse or MCB (d) a plug top
24. 24.True or false: to take cells out after use is safe. (a) False (b) True
25. 25.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
26. 26.True or false: to use mains for a project is not safe. (a) False (b) True
27. 27.Which of these is safe? (a) poke things in a socket (b) touch a switch when wet (c) take cells out after use (d) open a phone charger
28. 28.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a parallel circuit (c) a safe circuit (d) an open circuit
29. 29.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
30. 30.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
31. 31.True or false: to open a phone charger is not safe. (a) True (b) False
32. 32.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) a small battery pack (d) an inverter socket
33. 33.Which of these is safe? (a) climb an electric pole (b) stay away from pylons (c) throw cells in a fire (d) touch a fallen wire
34. 34.🔍 Which is the odd one out? (a) touch a switch when wet (b) open a phone charger (c) fly a kite near wires (d) take cells out after use
35. 35.True or false: to build with an adult near is safe. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) use mains for a project (b) poke things in a socket (c) climb an electric pole (d) build with an adult near
37. 37.🔍 Which is the odd one out? (a) keep drinks far away (b) take cells out after use (c) stay away from pylons (d) use a cable with cuts
38. 38.🔍 Which is the odd one out? (a) build with an adult near (b) stay away from pylons (c) keep drinks far away (d) touch a switch when wet
39. 39.🔍 Which is the odd one out? (a) keep drinks far away (b) poke things in a socket (c) dry your hands first (d) use small battery cells
40. 40.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe

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