Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 224 · 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 long wire (b) a plug top (c) a fuse or MCB (d) a bulb
2. 2.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water carries current (d) water makes it cold
3. 3.⚠️ 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
4. 4.🔍 Which is the odd one out? (a) dry your hands first (b) touch a switch when wet (c) take cells out after use (d) stop if a part gets hot
5. 5.True or false: to dry your hands first is not safe. (a) False (b) True
6. 6.True or false: to fly a kite near wires is safe. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) fly a kite near wires (d) keep drinks far away
8. 8.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) stay away from pylons (d) poke things in a socket
9. 9.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a stranger online (c) a trusted adult (d) a younger child
10. 10.True or false: to open a phone charger is safe. (a) False (b) True
11. 11.Which of these is safe? (a) dry your hands first (b) touch a switch when wet (c) use a cable with cuts (d) fly a kite near wires
12. 12.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
13. 13.🔍 Which is the odd one out? (a) use small battery cells (b) stay away from pylons (c) fly kites in open fields (d) poke things in a socket
14. 14.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
15. 15.True or false: to touch a fallen wire is safe. (a) True (b) False
16. 16.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
17. 17.🔍 Which is the odd one out? (a) take cells out after use (b) use small battery cells (c) fly kites in open fields (d) open a phone charger
18. 18.⚠️ 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
19. 19.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
20. 20.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
21. 21.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
22. 22.Which of these is not safe? (a) take cells out after use (b) fly a kite near wires (c) dry your hands first (d) stop if a part gets hot
23. 23.True or false: to poke things in a socket is not safe. (a) False (b) True
24. 24.Which of these is safe? (a) open a phone charger (b) poke things in a socket (c) touch a switch when wet (d) use small battery cells
25. 25.Which of these is not safe? (a) use mains for a project (b) use small battery cells (c) stop if a part gets hot (d) stay away from pylons
26. 26.Which of these is not safe? (a) dry your hands first (b) open a phone charger (c) use small battery cells (d) fly kites in open fields
27. 27.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
28. 28.True or false: to build with an adult near is safe. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) touch a fallen wire (b) use small battery cells (c) build with an adult near (d) dry your hands first
30. 30.🔍 Which is the odd one out? (a) use small battery cells (b) stay away from pylons (c) take cells out after use (d) climb an electric pole
31. 31.⚠️ 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 short circuit (d) a safe circuit
32. 32.True or false: to touch a switch when wet is not safe. (a) False (b) True
33. 33.True or false: to throw cells in a fire is safe. (a) False (b) True
34. 34.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 1.5 V (d) 230 V
35. 35.True or false: to open a phone charger is not safe. (a) True (b) False
36. 36.Which of these is not safe? (a) use small battery cells (b) stay away from pylons (c) climb an electric pole (d) build with an adult near
37. 37.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
38. 38.🔍 Which is the odd one out? (a) use a cable with cuts (b) stay away from pylons (c) use small battery cells (d) fly kites in open fields
39. 39.🔍 Which is the odd one out? (a) throw cells in a fire (b) open a phone charger (c) use mains for a project (d) stop if a part gets hot
40. 40.Which of these is safe? (a) take cells out after use (b) use mains for a project (c) poke things in a socket (d) climb an electric pole

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