Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 526 · 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.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 1.5 V (c) 9 V (d) 230 V
2. 2.⚠️ 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
3. 3.🔍 Which is the odd one out? (a) open a phone charger (b) throw cells in a fire (c) poke things in a socket (d) use small battery cells
4. 4.True or false: to take cells out after use is safe. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) open a phone charger (b) touch a fallen wire (c) touch a switch when wet (d) keep drinks far away
6. 6.Which of these is not safe? (a) use small battery cells (b) take cells out after use (c) touch a switch when wet (d) dry your hands first
7. 7.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
8. 8.Which of these is not safe? (a) fly kites in open fields (b) open a phone charger (c) build with an adult near (d) stay away from pylons
9. 9.True or false: to dry your hands first is safe. (a) False (b) True
10. 10.True or false: to touch a switch when wet is safe. (a) True (b) False
11. 11.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a wall socket (c) a small battery pack (d) a mains extension board
12. 12.🔍 Which is the odd one out? (a) open a phone charger (b) stay away from pylons (c) fly kites in open fields (d) dry your hands first
13. 13.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a bulb (c) a long wire (d) a plug top
14. 14.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
15. 15.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
16. 16.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
17. 17.True or false: to stop if a part gets hot is not safe. (a) False (b) True
18. 18.Which of these is not safe? (a) stop if a part gets hot (b) throw cells in a fire (c) use small battery cells (d) build with an adult near
19. 19.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) water makes it cold (c) it is just untidy (d) water carries current
20. 20.🔍 Which is the odd one out? (a) fly kites in open fields (b) touch a switch when wet (c) dry your hands first (d) keep drinks far away
21. 21.🔍 Which is the odd one out? (a) stay away from pylons (b) use a cable with cuts (c) stop if a part gets hot (d) use small battery cells
22. 22.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
23. 23.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
24. 24.True or false: to use a cable with cuts is not safe. (a) True (b) False
25. 25.True or false: to fly kites in open fields is not safe. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) stay away from pylons (b) fly kites in open fields (c) climb an electric pole (d) dry your hands first
27. 27.Which of these is not safe? (a) climb an electric pole (b) stay away from pylons (c) fly kites in open fields (d) use small battery cells
28. 28.Which of these is not safe? (a) touch a fallen wire (b) stop if a part gets hot (c) keep drinks far away (d) build with an adult near
29. 29.⚠️ 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) wait and watch (d) shout for an adult
30. 30.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
31. 31.True or false: to throw cells in a fire is safe. (a) True (b) False
32. 32.True or false: to keep drinks far away is safe. (a) True (b) False
33. 33.Which of these is safe? (a) touch a switch when wet (b) fly kites in open fields (c) use a cable with cuts (d) poke things in a socket
34. 34.🔍 Which is the odd one out? (a) dry your hands first (b) take cells out after use (c) use small battery cells (d) poke things in a socket
35. 35.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
36. 36.🔍 Which is the odd one out? (a) climb an electric pole (b) throw cells in a fire (c) use a cable with cuts (d) build with an adult near
37. 37.True or false: to climb an electric pole is safe. (a) False (b) True
38. 38.True or false: to stay away from pylons is safe. (a) True (b) False
39. 39.Which of these is not safe? (a) use a cable with cuts (b) use small battery cells (c) take cells out after use (d) dry your hands first
40. 40.True or false: to throw cells in a fire is not safe. (a) True (b) False

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