Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 653 · 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.True or false: to open a phone charger is safe. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) stay away from pylons (b) throw cells in a fire (c) take cells out after use (d) use small battery cells
3. 3.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) nobody (d) a younger child
4. 4.True or false: to fly a kite near wires is safe. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) use small battery cells (b) use a cable with cuts (c) open a phone charger (d) touch a fallen wire
6. 6.Which of these is not safe? (a) build with an adult near (b) touch a switch when wet (c) dry your hands first (d) use small battery cells
7. 7.⚠️ 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 safe circuit (d) a parallel circuit
8. 8.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
9. 9.Which of these is not safe? (a) keep drinks far away (b) use a cable with cuts (c) use small battery cells (d) build with an adult near
10. 10.🔍 Which is the odd one out? (a) poke things in a socket (b) touch a switch when wet (c) build with an adult near (d) throw cells in a fire
11. 11.True or false: to poke things in a socket is not safe. (a) True (b) False
12. 12.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
13. 13.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 1.5 V (c) 9 V (d) 12 V
14. 14.True or false: to stop if a part gets hot is not safe. (a) False (b) True
15. 15.Which of these is safe? (a) build with an adult near (b) throw cells in a fire (c) touch a switch when wet (d) poke things in a socket
16. 16.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a mains extension board (c) a wall socket (d) an inverter socket
17. 17.Which of these is safe? (a) fly a kite near wires (b) use small battery cells (c) use a cable with cuts (d) throw cells in a fire
18. 18.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) water makes it cold (c) it is just untidy (d) it spoils the paint
19. 19.🔍 Which is the odd one out? (a) keep drinks far away (b) fly kites in open fields (c) stay away from pylons (d) touch a switch when wet
20. 20.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
21. 21.True or false: to poke things in a socket is safe. (a) True (b) False
22. 22.Which of these is safe? (a) stay away from pylons (b) touch a switch when wet (c) use a cable with cuts (d) use mains for a project
23. 23.True or false: to stay away from pylons is not safe. (a) False (b) True
24. 24.Which of these is not safe? (a) use mains for a project (b) stay away from pylons (c) use small battery cells (d) build with an adult near
25. 25.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
26. 26.True or false: to touch a fallen wire is safe. (a) False (b) True
27. 27.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) shout for an adult (c) wait and watch (d) pour water on them
28. 28.True or false: to use small battery cells is not safe. (a) True (b) False
29. 29.Which of these is safe? (a) take cells out after use (b) climb an electric pole (c) throw cells in a fire (d) use mains for a project
30. 30.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
31. 31.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a plug top (c) a long wire (d) a fuse or MCB
32. 32.🔍 Which is the odd one out? (a) keep drinks far away (b) build with an adult near (c) fly a kite near wires (d) use small battery cells
33. 33.True or false: to throw cells in a fire is safe. (a) False (b) True
34. 34.Which of these is not safe? (a) use small battery cells (b) stay away from pylons (c) open a phone charger (d) keep drinks far away
35. 35.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
36. 36.True or false: to touch a switch when wet is safe. (a) False (b) True
37. 37.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
38. 38.Which of these is not safe? (a) build with an adult near (b) fly a kite near wires (c) stay away from pylons (d) take cells out after use
39. 39.Which of these is safe? (a) use a cable with cuts (b) open a phone charger (c) dry your hands first (d) throw cells in a fire
40. 40.Which of these is safe? (a) throw cells in a fire (b) poke things in a socket (c) stop if a part gets hot (d) touch a switch when wet

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