Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 834 · 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) 9 V (c) 1.5 V (d) 230 V
2. 2.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
3. 3.🔍 Which is the odd one out? (a) use small battery cells (b) stop if a part gets hot (c) take cells out after use (d) touch a switch when wet
4. 4.True or false: to fly a kite near wires is not safe. (a) False (b) True
5. 5.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
6. 6.🔍 Which is the odd one out? (a) build with an adult near (b) use mains for a project (c) dry your hands first (d) stay away from pylons
7. 7.🔍 Which is the odd one out? (a) touch a fallen wire (b) throw cells in a fire (c) use small battery cells (d) open a phone charger
8. 8.True or false: to dry your hands first is safe. (a) True (b) False
9. 9.Which of these is safe? (a) build with an adult near (b) throw cells in a fire (c) fly a kite near wires (d) touch a fallen wire
10. 10.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
11. 11.True or false: to touch a fallen wire is safe. (a) False (b) True
12. 12.Which of these is safe? (a) use small battery cells (b) use mains for a project (c) open a phone charger (d) fly a kite near wires
13. 13.True or false: to keep drinks far away is not safe. (a) False (b) True
14. 14.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water makes it cold (d) water carries current
15. 15.True or false: to touch a fallen wire is not safe. (a) False (b) True
16. 16.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a safe circuit (d) a short circuit
17. 17.True or false: to poke things in a socket is not safe. (a) True (b) False
18. 18.True or false: to dry your hands first is not safe. (a) True (b) False
19. 19.Which of these is not safe? (a) take cells out after use (b) touch a switch when wet (c) keep drinks far away (d) stop if a part gets hot
20. 20.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
21. 21.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) an inverter socket (d) a mains extension board
22. 22.Which of these is not safe? (a) build with an adult near (b) stop if a part gets hot (c) dry your hands first (d) poke things in a socket
23. 23.Which of these is safe? (a) touch a switch when wet (b) keep drinks far away (c) climb an electric pole (d) touch a fallen wire
24. 24.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
25. 25.🔍 Which is the odd one out? (a) use a cable with cuts (b) stop if a part gets hot (c) build with an adult near (d) keep drinks far away
26. 26.Which of these is not safe? (a) fly kites in open fields (b) dry your hands first (c) use mains for a project (d) build with an adult near
27. 27.True or false: to open a phone charger is safe. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) build with an adult near (b) fly a kite near wires (c) touch a switch when wet (d) use mains for a project
29. 29.True or false: to fly a kite near wires is safe. (a) False (b) True
30. 30.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
31. 31.🔍 Which is the odd one out? (a) touch a fallen wire (b) climb an electric pole (c) open a phone charger (d) take cells out after use
32. 32.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
33. 33.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a bulb (d) a plug top
34. 34.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
35. 35.🔍 Which is the odd one out? (a) stay away from pylons (b) fly a kite near wires (c) build with an adult near (d) use small battery cells
36. 36.Which of these is not safe? (a) build with an adult near (b) climb an electric pole (c) keep drinks far away (d) stop if a part gets hot
37. 37.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) stop if a part gets hot (d) throw cells in a fire
38. 38.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
39. 39.Which of these is safe? (a) touch a switch when wet (b) climb an electric pole (c) dry your hands first (d) throw cells in a fire
40. 40.Which of these is safe? (a) fly kites in open fields (b) touch a fallen wire (c) open a phone charger (d) poke things in a socket

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