Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 511 · 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.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a fuse or MCB (d) a long wire
2. 2.Which of these is safe? (a) open a phone charger (b) use a cable with cuts (c) stop if a part gets hot (d) touch a fallen wire
3. 3.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a short circuit (c) a parallel circuit (d) an open circuit
4. 4.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
5. 5.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
6. 6.True or false: to keep drinks far away is safe. (a) False (b) True
7. 7.True or false: to use a cable with cuts is safe. (a) True (b) False
8. 8.Which of these is safe? (a) use mains for a project (b) throw cells in a fire (c) dry your hands first (d) open a phone charger
9. 9.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) fly a kite near wires (d) stop if a part gets hot
10. 10.True or false: to dry your hands first is safe. (a) False (b) True
11. 11.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) it spoils the paint (d) water makes it cold
12. 12.True or false: to open a phone charger is safe. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) keep drinks far away (b) stop if a part gets hot (c) fly a kite near wires (d) build with an adult near
14. 14.True or false: to take cells out after use is not safe. (a) True (b) False
15. 15.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) shout for an adult (c) pull them by the hand (d) wait and watch
16. 16.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 12 V (c) 9 V (d) 230 V
17. 17.🔍 Which is the odd one out? (a) use small battery cells (b) fly a kite near wires (c) touch a fallen wire (d) use mains for a project
18. 18.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
19. 19.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) an inverter socket (c) a mains extension board (d) a wall socket
20. 20.🔍 Which is the odd one out? (a) poke things in a socket (b) stay away from pylons (c) build with an adult near (d) stop if a part gets hot
21. 21.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
22. 22.True or false: to dry your hands first is not safe. (a) False (b) True
23. 23.Which of these is not safe? (a) take cells out after use (b) fly a kite near wires (c) dry your hands first (d) stay away from pylons
24. 24.🔍 Which is the odd one out? (a) climb an electric pole (b) open a phone charger (c) touch a fallen wire (d) keep drinks far away
25. 25.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
26. 26.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) touch a fallen wire (d) build with an adult near
27. 27.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
28. 28.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) take cells out after use (d) fly a kite near wires
29. 29.True or false: to throw cells in a fire is safe. (a) True (b) False
30. 30.Which of these is safe? (a) use a cable with cuts (b) touch a fallen wire (c) build with an adult near (d) use mains for a project
31. 31.Which of these is safe? (a) fly a kite near wires (b) throw cells in a fire (c) use mains for a project (d) fly kites in open fields
32. 32.True or false: to poke things in a socket is not safe. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) use small battery cells (b) touch a switch when wet (c) stay away from pylons (d) build with an adult near
34. 34.Which of these is not safe? (a) keep drinks far away (b) use small battery cells (c) open a phone charger (d) take cells out after use
35. 35.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
36. 36.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
37. 37.Which of these is not safe? (a) dry your hands first (b) touch a switch when wet (c) keep drinks far away (d) take cells out after use
38. 38.Which of these is safe? (a) poke things in a socket (b) open a phone charger (c) stay away from pylons (d) throw cells in a fire
39. 39.True or false: to use small battery cells is safe. (a) False (b) True
40. 40.Which of these is not safe? (a) use small battery cells (b) use mains for a project (c) keep drinks far away (d) dry your hands first

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids