Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 636 · 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.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
2. 2.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
3. 3.🔍 Which is the odd one out? (a) use small battery cells (b) fly kites in open fields (c) keep drinks far away (d) poke things in a socket
4. 4.True or false: to poke things in a socket is not safe. (a) False (b) True
5. 5.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
6. 6.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 230 V (c) 9 V (d) 12 V
7. 7.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it is just untidy (c) it spoils the paint (d) water carries current
8. 8.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) nobody (d) a trusted adult
9. 9.🔍 Which is the odd one out? (a) fly kites in open fields (b) stop if a part gets hot (c) use small battery cells (d) touch a fallen wire
10. 10.Which of these is safe? (a) fly kites in open fields (b) throw cells in a fire (c) touch a fallen wire (d) open a phone charger
11. 11.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) pour water on them (c) wait and watch (d) shout for an adult
12. 12.🔍 Which is the odd one out? (a) open a phone charger (b) fly kites in open fields (c) take cells out after use (d) build with an adult near
13. 13.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
14. 14.🔍 Which is the odd one out? (a) open a phone charger (b) keep drinks far away (c) poke things in a socket (d) fly a kite near wires
15. 15.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
16. 16.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a mains extension board (c) a wall socket (d) an inverter socket
17. 17.True or false: to open a phone charger is safe. (a) True (b) False
18. 18.True or false: to fly a kite near wires is safe. (a) False (b) True
19. 19.Which of these is not safe? (a) keep drinks far away (b) stop if a part gets hot (c) use mains for a project (d) build with an adult near
20. 20.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
21. 21.🔍 Which is the odd one out? (a) keep drinks far away (b) dry your hands first (c) use mains for a project (d) take cells out after use
22. 22.Which of these is not safe? (a) dry your hands first (b) touch a fallen wire (c) stay away from pylons (d) keep drinks far away
23. 23.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
24. 24.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a parallel circuit (c) a safe circuit (d) a short circuit
25. 25.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) throw cells in a fire (d) stop if a part gets hot
26. 26.True or false: to use mains for a project is not safe. (a) False (b) True
27. 27.Which of these is not safe? (a) touch a switch when wet (b) build with an adult near (c) use small battery cells (d) stop if a part gets hot
28. 28.🔍 Which is the odd one out? (a) open a phone charger (b) stay away from pylons (c) climb an electric pole (d) fly a kite near wires
29. 29.True or false: to open a phone charger is not safe. (a) False (b) True
30. 30.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
31. 31.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a plug top (d) a fuse or MCB
32. 32.🔍 Which is the odd one out? (a) take cells out after use (b) dry your hands first (c) throw cells in a fire (d) build with an adult near
33. 33.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
34. 34.🔍 Which is the odd one out? (a) keep drinks far away (b) take cells out after use (c) fly kites in open fields (d) climb an electric pole
35. 35.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
36. 36.True or false: to stop if a part gets hot is safe. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) fly kites in open fields (d) fly a kite near wires
38. 38.Which of these is safe? (a) throw cells in a fire (b) stop if a part gets hot (c) open a phone charger (d) touch a fallen wire
39. 39.🔍 Which is the odd one out? (a) dry your hands first (b) fly a kite near wires (c) touch a fallen wire (d) poke things in a socket
40. 40.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe

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