Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 658 · 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) 230 V (c) 1.5 V (d) 9 V
2. 2.Which of these is safe? (a) use a cable with cuts (b) fly a kite near wires (c) stop if a part gets hot (d) use mains for a project
3. 3.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water makes it cold (c) water carries current (d) it spoils the paint
4. 4.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) touch a fallen wire (d) take cells out after use
5. 5.🔍 Which is the odd one out? (a) open a phone charger (b) use mains for a project (c) throw cells in a fire (d) use small battery cells
6. 6.True or false: to throw cells in a fire is not safe. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) touch a switch when wet (d) stay away from pylons
8. 8.Which of these is safe? (a) use a cable with cuts (b) touch a switch when wet (c) use mains for a project (d) use small battery cells
9. 9.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a safe circuit (c) a parallel circuit (d) an open circuit
10. 10.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
11. 11.True or false: to build with an adult near is not safe. (a) False (b) True
12. 12.Which of these is not safe? (a) stay away from pylons (b) take cells out after use (c) build with an adult near (d) poke things in a socket
13. 13.Which of these is safe? (a) touch a switch when wet (b) build with an adult near (c) throw cells in a fire (d) touch a fallen wire
14. 14.🔍 Which is the odd one out? (a) throw cells in a fire (b) fly kites in open fields (c) stop if a part gets hot (d) dry your hands first
15. 15.🔍 Which is the odd one out? (a) touch a fallen wire (b) climb an electric pole (c) fly a kite near wires (d) keep drinks far away
16. 16.Which of these is safe? (a) touch a fallen wire (b) climb an electric pole (c) fly kites in open fields (d) use a cable with cuts
17. 17.🔍 Which is the odd one out? (a) open a phone charger (b) stay away from pylons (c) dry your hands first (d) keep drinks far away
18. 18.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a long wire (c) a fuse or MCB (d) a bulb
19. 19.True or false: to fly kites in open fields is safe. (a) False (b) True
20. 20.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
21. 21.🔍 Which is the odd one out? (a) open a phone charger (b) stop if a part gets hot (c) poke things in a socket (d) fly a kite near wires
22. 22.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a small battery pack (d) a wall socket
23. 23.True or false: to stop if a part gets hot is safe. (a) False (b) True
24. 24.Which of these is not safe? (a) stop if a part gets hot (b) build with an adult near (c) open a phone charger (d) fly kites in open fields
25. 25.True or false: to use small battery cells is not safe. (a) True (b) False
26. 26.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
27. 27.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
28. 28.Which of these is not safe? (a) stop if a part gets hot (b) keep drinks far away (c) fly kites in open fields (d) use mains for a project
29. 29.Which of these is safe? (a) dry your hands first (b) climb an electric pole (c) open a phone charger (d) fly a kite near wires
30. 30.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) a stranger online (d) nobody
31. 31.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
32. 32.True or false: to take cells out after use is not safe. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) touch a fallen wire (b) build with an adult near (c) use mains for a project (d) fly a kite near wires
34. 34.Which of these is not safe? (a) stay away from pylons (b) climb an electric pole (c) fly kites in open fields (d) build with an adult near
35. 35.True or false: to fly kites in open fields is not safe. (a) True (b) False
36. 36.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
37. 37.🔍 Which is the odd one out? (a) build with an adult near (b) dry your hands first (c) use a cable with cuts (d) take cells out after use
38. 38.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
39. 39.True or false: to keep drinks far away is not safe. (a) True (b) False
40. 40.True or false: to poke things in a socket is not safe. (a) True (b) False

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