Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 912 · 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 build with an adult near is not safe. (a) False (b) True
2. 2.True or false: to open a phone charger is not safe. (a) True (b) False
3. 3.Which of these is not safe? (a) stop if a part gets hot (b) dry your hands first (c) use small battery cells (d) use a cable with cuts
4. 4.Which of these is safe? (a) throw cells in a fire (b) touch a switch when wet (c) stay away from pylons (d) use mains for a project
5. 5.🔍 Which is the odd one out? (a) climb an electric pole (b) use a cable with cuts (c) touch a switch when wet (d) use small battery cells
6. 6.True or false: to stay away from pylons is not safe. (a) False (b) True
7. 7.Which of these is safe? (a) fly kites in open fields (b) poke things in a socket (c) open a phone charger (d) fly a kite near wires
8. 8.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
9. 9.🔍 Which is the odd one out? (a) take cells out after use (b) touch a switch when wet (c) use a cable with cuts (d) poke things in a socket
10. 10.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
11. 11.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
12. 12.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) stop if a part gets hot (d) open a phone charger
13. 13.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 230 V (d) 1.5 V
14. 14.True or false: to throw cells in a fire is not safe. (a) True (b) False
15. 15.Which of these is safe? (a) use a cable with cuts (b) open a phone charger (c) use small battery cells (d) poke things in a socket
16. 16.Which of these is not safe? (a) stop if a part gets hot (b) take cells out after use (c) build with an adult near (d) touch a switch when wet
17. 17.🔍 Which is the odd one out? (a) stay away from pylons (b) dry your hands first (c) open a phone charger (d) take cells out after use
18. 18.Which of these is safe? (a) throw cells in a fire (b) touch a switch when wet (c) climb an electric pole (d) dry your hands first
19. 19.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) a small battery pack (d) an inverter socket
20. 20.🔍 Which is the odd one out? (a) climb an electric pole (b) use small battery cells (c) stop if a part gets hot (d) stay away from pylons
21. 21.Which of these is not safe? (a) use mains for a project (b) stop if a part gets hot (c) take cells out after use (d) dry your hands first
22. 22.⚠️ 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) shout for an adult (d) wait and watch
23. 23.True or false: to use small battery cells is not safe. (a) False (b) True
24. 24.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
25. 25.Which of these is not safe? (a) stop if a part gets hot (b) poke things in a socket (c) dry your hands first (d) use small battery cells
26. 26.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
27. 27.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
28. 28.True or false: to stop if a part gets hot is safe. (a) True (b) False
29. 29.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water makes it cold (d) water carries current
30. 30.🔍 Which is the odd one out? (a) stop if a part gets hot (b) keep drinks far away (c) use small battery cells (d) touch a fallen wire
31. 31.True or false: to throw cells in a fire is safe. (a) False (b) True
32. 32.Which of these is safe? (a) use a cable with cuts (b) climb an electric pole (c) build with an adult near (d) poke things in a socket
33. 33.🔍 Which is the odd one out? (a) stay away from pylons (b) build with an adult near (c) use mains for a project (d) keep drinks far away
34. 34.True or false: to take cells out after use is not safe. (a) True (b) False
35. 35.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a bulb (d) a plug top
36. 36.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
37. 37.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
38. 38.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
39. 39.Which of these is safe? (a) touch a switch when wet (b) take cells out after use (c) climb an electric pole (d) touch a fallen wire
40. 40.True or false: to fly kites in open fields is not safe. (a) True (b) False

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