Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 65 · 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) poke things in a socket (c) use small battery cells (d) use a cable with cuts
2. 2.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a plug top (c) a bulb (d) a fuse or MCB
3. 3.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
4. 4.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a trusted adult (d) a younger child
5. 5.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 230 V (c) 12 V (d) 1.5 V
6. 6.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) an inverter socket (c) a small battery pack (d) a mains extension board
7. 7.Which of these is safe? (a) touch a fallen wire (b) use a cable with cuts (c) stay away from pylons (d) use mains for a project
8. 8.True or false: to poke things in a socket is not safe. (a) False (b) True
9. 9.Which of these is safe? (a) climb an electric pole (b) poke things in a socket (c) dry your hands first (d) use mains for a project
10. 10.Which of these is safe? (a) climb an electric pole (b) open a phone charger (c) stop if a part gets hot (d) poke things in a socket
11. 11.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
12. 12.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
13. 13.Which of these is safe? (a) touch a fallen wire (b) open a phone charger (c) take cells out after use (d) poke things in a socket
14. 14.True or false: to climb an electric pole is safe. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) take cells out after use (b) use mains for a project (c) use a cable with cuts (d) climb an electric pole
16. 16.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
17. 17.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
18. 18.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) use mains for a project (d) use small battery cells
19. 19.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a safe circuit (c) a parallel circuit (d) a short circuit
20. 20.🔍 Which is the odd one out? (a) use small battery cells (b) stay away from pylons (c) take cells out after use (d) use mains for a project
21. 21.True or false: to fly a kite near wires is safe. (a) False (b) True
22. 22.True or false: to use mains for a project is not safe. (a) True (b) False
23. 23.True or false: to keep drinks far away is not safe. (a) True (b) False
24. 24.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it is just untidy (c) water carries current (d) it spoils the paint
25. 25.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
26. 26.Which of these is not safe? (a) keep drinks far away (b) open a phone charger (c) use small battery cells (d) stop if a part gets hot
27. 27.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
28. 28.Which of these is safe? (a) build with an adult near (b) throw cells in a fire (c) open a phone charger (d) poke things in a socket
29. 29.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) use a cable with cuts (d) take cells out after use
30. 30.True or false: to stop if a part gets hot is safe. (a) False (b) True
31. 31.True or false: to fly kites in open fields is safe. (a) False (b) True
32. 32.True or false: to take cells out after use is safe. (a) False (b) True
33. 33.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
34. 34.True or false: to use mains for a project is safe. (a) True (b) False
35. 35.Which of these is not safe? (a) fly kites in open fields (b) stop if a part gets hot (c) touch a switch when wet (d) stay away from pylons
36. 36.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
37. 37.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
38. 38.🔍 Which is the odd one out? (a) fly kites in open fields (b) open a phone charger (c) keep drinks far away (d) take cells out after use
39. 39.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
40. 40.True or false: to open a phone charger is not safe. (a) False (b) True

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