Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 882 · 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 use a cable with cuts is safe. (a) False (b) True
2. 2.True or false: to keep drinks far away is safe. (a) False (b) True
3. 3.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
4. 4.True or false: to build with an adult near is safe. (a) False (b) True
5. 5.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
6. 6.True or false: to climb an electric pole is safe. (a) True (b) False
7. 7.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) an inverter socket (d) a small battery pack
8. 8.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a plug top (d) a bulb
9. 9.True or false: to stop if a part gets hot is not safe. (a) False (b) True
10. 10.Which of these is not safe? (a) use mains for a project (b) use small battery cells (c) build with an adult near (d) keep drinks far away
11. 11.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) use a cable with cuts (d) use small battery cells
12. 12.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) touch a switch when wet (d) stay away from pylons
13. 13.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a younger child (c) nobody (d) a stranger online
14. 14.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water makes it cold (c) it spoils the paint (d) water carries current
15. 15.🔍 Which is the odd one out? (a) use a cable with cuts (b) poke things in a socket (c) stay away from pylons (d) open a phone charger
16. 16.🔍 Which is the odd one out? (a) open a phone charger (b) touch a switch when wet (c) throw cells in a fire (d) build with an adult near
17. 17.Which of these is safe? (a) touch a fallen wire (b) poke things in a socket (c) touch a switch when wet (d) use small battery cells
18. 18.🔍 Which is the odd one out? (a) take cells out after use (b) fly a kite near wires (c) climb an electric pole (d) touch a switch when wet
19. 19.🔍 Which is the odd one out? (a) climb an electric pole (b) use small battery cells (c) keep drinks far away (d) stop if a part gets hot
20. 20.Which of these is not safe? (a) build with an adult near (b) fly kites in open fields (c) fly a kite near wires (d) stop if a part gets hot
21. 21.True or false: to use mains for a project is safe. (a) True (b) False
22. 22.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
23. 23.🔍 Which is the odd one out? (a) use mains for a project (b) stop if a part gets hot (c) throw cells in a fire (d) touch a switch when wet
24. 24.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a safe circuit (c) a short circuit (d) an open circuit
25. 25.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) poke things in a socket (d) fly kites in open fields
26. 26.🔍 Which is the odd one out? (a) use a cable with cuts (b) climb an electric pole (c) use small battery cells (d) use mains for a project
27. 27.🔍 Which is the odd one out? (a) open a phone charger (b) stay away from pylons (c) take cells out after use (d) stop if a part gets hot
28. 28.True or false: to take cells out after use is not safe. (a) False (b) True
29. 29.True or false: to stay away from pylons is not safe. (a) True (b) False
30. 30.True or false: to fly kites in open fields is not safe. (a) False (b) True
31. 31.True or false: to throw cells in a fire is safe. (a) False (b) True
32. 32.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
33. 33.True or false: to take cells out after use is safe. (a) False (b) True
34. 34.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
35. 35.Which of these is not safe? (a) fly kites in open fields (b) use small battery cells (c) touch a fallen wire (d) build with an adult near
36. 36.⚠️ 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
37. 37.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 230 V (c) 12 V (d) 9 V
38. 38.Which of these is safe? (a) poke things in a socket (b) use a cable with cuts (c) stay away from pylons (d) fly a kite near wires
39. 39.🔍 Which is the odd one out? (a) use small battery cells (b) dry your hands first (c) use mains for a project (d) build with an adult near
40. 40.True or false: to build with an adult near is not safe. (a) True (b) False

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