Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 50 · 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.⚠️ 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
2. 2.True or false: to stop if a part gets hot is safe. (a) True (b) False
3. 3.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
4. 4.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
5. 5.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
6. 6.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
7. 7.Which of these is safe? (a) touch a switch when wet (b) use a cable with cuts (c) stop if a part gets hot (d) use mains for a project
8. 8.⚠️ 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) wait and watch (d) shout for an adult
9. 9.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
10. 10.Which of these is safe? (a) fly a kite near wires (b) use a cable with cuts (c) use small battery cells (d) use mains for a project
11. 11.Which of these is safe? (a) use mains for a project (b) take cells out after use (c) climb an electric pole (d) poke things in a socket
12. 12.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a short circuit (c) an open circuit (d) a safe circuit
13. 13.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) an inverter socket (c) a small battery pack (d) a wall socket
14. 14.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 230 V (c) 1.5 V (d) 12 V
15. 15.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
16. 16.True or false: to take cells out after use is not safe. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) use a cable with cuts (b) take cells out after use (c) keep drinks far away (d) use small battery cells
18. 18.🔍 Which is the odd one out? (a) poke things in a socket (b) build with an adult near (c) fly a kite near wires (d) use mains for a project
19. 19.True or false: to fly a kite near wires is safe. (a) True (b) False
20. 20.Which of these is not safe? (a) stop if a part gets hot (b) use mains for a project (c) use small battery cells (d) fly kites in open fields
21. 21.True or false: to open a phone charger is not safe. (a) False (b) True
22. 22.True or false: to touch a switch when wet is not safe. (a) True (b) False
23. 23.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) take cells out after use (d) touch a switch when wet
24. 24.True or false: to fly kites in open fields is safe. (a) False (b) True
25. 25.True or false: to fly a kite near wires is not safe. (a) True (b) False
26. 26.True or false: to keep drinks far away is not safe. (a) True (b) False
27. 27.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) dry your hands first (d) use a cable with cuts
28. 28.Which of these is not safe? (a) fly a kite near wires (b) build with an adult near (c) dry your hands first (d) stay away from pylons
29. 29.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
30. 30.⚠️ 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
31. 31.True or false: to use mains for a project is safe. (a) False (b) True
32. 32.True or false: to poke things in a socket is safe. (a) True (b) False
33. 33.True or false: to stop if a part gets hot is not safe. (a) True (b) False
34. 34.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
35. 35.🔍 Which is the odd one out? (a) fly kites in open fields (b) poke things in a socket (c) keep drinks far away (d) dry your hands first
36. 36.True or false: to build with an adult near is not safe. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) touch a switch when wet (b) poke things in a socket (c) dry your hands first (d) open a phone charger
38. 38.🔍 Which is the odd one out? (a) open a phone charger (b) stay away from pylons (c) use small battery cells (d) keep drinks far away
39. 39.🔍 Which is the odd one out? (a) dry your hands first (b) keep drinks far away (c) climb an electric pole (d) stop if a part gets hot
40. 40.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe

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