Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 453 · 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.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) an inverter socket (d) a wall socket
2. 2.🔍 Which is the odd one out? (a) fly a kite near wires (b) throw cells in a fire (c) use a cable with cuts (d) stay away from pylons
3. 3.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 12 V (d) 230 V
4. 4.True or false: to take cells out after use is not safe. (a) True (b) False
5. 5.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
6. 6.True or false: to dry your hands first is safe. (a) False (b) True
7. 7.True or false: to poke things in a socket is safe. (a) False (b) True
8. 8.Which of these is safe? (a) touch a fallen wire (b) touch a switch when wet (c) stop if a part gets hot (d) use mains for a project
9. 9.True or false: to fly kites in open fields is safe. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) build with an adult near (b) stop if a part gets hot (c) use mains for a project (d) stay away from pylons
11. 11.🔍 Which is the odd one out? (a) keep drinks far away (b) fly a kite near wires (c) open a phone charger (d) use mains for a project
12. 12.🔍 Which is the odd one out? (a) stay away from pylons (b) dry your hands first (c) keep drinks far away (d) use a cable with cuts
13. 13.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a stranger online (c) a younger child (d) nobody
14. 14.Which of these is safe? (a) use a cable with cuts (b) use mains for a project (c) take cells out after use (d) poke things in a socket
15. 15.🔍 Which is the odd one out? (a) throw cells in a fire (b) fly a kite near wires (c) poke things in a socket (d) build with an adult near
16. 16.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a bulb (c) a plug top (d) a long wire
17. 17.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
18. 18.🔍 Which is the odd one out? (a) open a phone charger (b) climb an electric pole (c) fly kites in open fields (d) use a cable with cuts
19. 19.⚠️ Is it safe to stay away from pylons? (a) safe (b) not safe
20. 20.Which of these is safe? (a) use small battery cells (b) fly a kite near wires (c) use mains for a project (d) touch a switch when wet
21. 21.True or false: to use a cable with cuts is safe. (a) True (b) False
22. 22.Which of these is not safe? (a) dry your hands first (b) fly kites in open fields (c) build with an adult near (d) touch a switch when wet
23. 23.Which of these is safe? (a) stay away from pylons (b) use a cable with cuts (c) throw cells in a fire (d) climb an electric pole
24. 24.Which of these is safe? (a) open a phone charger (b) climb an electric pole (c) dry your hands first (d) poke things in a socket
25. 25.🔍 Which is the odd one out? (a) use a cable with cuts (b) poke things in a socket (c) touch a switch when wet (d) use small battery cells
26. 26.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pull them by the hand (c) pour water on them (d) shout for an adult
27. 27.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a short circuit (c) a parallel circuit (d) a safe circuit
28. 28.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
29. 29.Which of these is safe? (a) fly a kite near wires (b) touch a fallen wire (c) climb an electric pole (d) fly kites in open fields
30. 30.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
31. 31.🔍 Which is the odd one out? (a) throw cells in a fire (b) take cells out after use (c) dry your hands first (d) fly kites in open fields
32. 32.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
33. 33.Which of these is not safe? (a) stop if a part gets hot (b) build with an adult near (c) climb an electric pole (d) take cells out after use
34. 34.🔍 Which is the odd one out? (a) touch a switch when wet (b) fly a kite near wires (c) take cells out after use (d) use mains for a project
35. 35.🔍 Which is the odd one out? (a) dry your hands first (b) build with an adult near (c) climb an electric pole (d) fly kites in open fields
36. 36.🔍 Which is the odd one out? (a) build with an adult near (b) touch a switch when wet (c) use small battery cells (d) keep drinks far away
37. 37.True or false: to climb an electric pole is safe. (a) False (b) True
38. 38.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it spoils the paint (c) water carries current (d) it is just untidy
39. 39.🔍 Which is the odd one out? (a) stop if a part gets hot (b) climb an electric pole (c) poke things in a socket (d) fly a kite near wires
40. 40.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) take cells out after use (d) fly a kite near wires

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