Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 73 · 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.True or false: to climb an electric pole is not safe. (a) False (b) True
2. 2.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a short circuit (c) a safe circuit (d) an open circuit
3. 3.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) a small battery pack (d) an inverter socket
4. 4.🔍 Which is the odd one out? (a) use mains for a project (b) poke things in a socket (c) take cells out after use (d) throw cells in a fire
5. 5.🔍 Which is the odd one out? (a) stay away from pylons (b) touch a fallen wire (c) dry your hands first (d) build with an adult near
6. 6.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
7. 7.Which of these is not safe? (a) fly kites in open fields (b) fly a kite near wires (c) dry your hands first (d) stay away from pylons
8. 8.Which of these is safe? (a) fly a kite near wires (b) use a cable with cuts (c) touch a fallen wire (d) keep drinks far away
9. 9.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a fuse or MCB (c) a plug top (d) a long wire
10. 10.Which of these is not safe? (a) use mains for a project (b) stay away from pylons (c) dry your hands first (d) build with an adult near
11. 11.True or false: to stop if a part gets hot is not safe. (a) True (b) False
12. 12.Which of these is safe? (a) use small battery cells (b) throw cells in a fire (c) touch a switch when wet (d) open a phone charger
13. 13.🔍 Which is the odd one out? (a) use a cable with cuts (b) touch a switch when wet (c) stop if a part gets hot (d) touch a fallen wire
14. 14.⚠️ 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
15. 15.Which of these is not safe? (a) stay away from pylons (b) open a phone charger (c) fly kites in open fields (d) take cells out after use
16. 16.🔍 Which is the odd one out? (a) keep drinks far away (b) poke things in a socket (c) touch a switch when wet (d) open a phone charger
17. 17.🔍 Which is the odd one out? (a) take cells out after use (b) use small battery cells (c) build with an adult near (d) open a phone charger
18. 18.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) stay away from pylons (d) use a cable with cuts
19. 19.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
20. 20.True or false: to use a cable with cuts is not safe. (a) True (b) False
21. 21.Which of these is safe? (a) throw cells in a fire (b) fly kites in open fields (c) poke things in a socket (d) use a cable with cuts
22. 22.Which of these is not safe? (a) build with an adult near (b) fly kites in open fields (c) throw cells in a fire (d) take cells out after use
23. 23.True or false: to throw cells in a fire is safe. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) fly a kite near wires (b) stop if a part gets hot (c) build with an adult near (d) use small battery cells
25. 25.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) shout for an adult (c) pull them by the hand (d) pour water on them
26. 26.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) a trusted adult (d) nobody
27. 27.True or false: to stay away from pylons is not safe. (a) True (b) False
28. 28.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
29. 29.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
30. 30.Which of these is not safe? (a) stop if a part gets hot (b) stay away from pylons (c) use small battery cells (d) touch a switch when wet
31. 31.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
32. 32.Which of these is not safe? (a) touch a fallen wire (b) keep drinks far away (c) build with an adult near (d) stop if a part gets hot
33. 33.True or false: to touch a fallen wire is not safe. (a) True (b) False
34. 34.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
35. 35.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
36. 36.Which of these is safe? (a) stay away from pylons (b) use mains for a project (c) fly a kite near wires (d) touch a switch when wet
37. 37.True or false: to open a phone charger is not safe. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) open a phone charger (b) use small battery cells (c) touch a fallen wire (d) use mains for a project
39. 39.True or false: to open a phone charger is safe. (a) False (b) True
40. 40.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 1.5 V (c) 9 V (d) 12 V

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