Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 504 · 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 of these is not safe? (a) poke things in a socket (b) use small battery cells (c) dry your hands first (d) stop if a part gets hot
2. 2.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it is just untidy (c) it spoils the paint (d) water makes it cold
3. 3.True or false: to dry your hands first is safe. (a) True (b) False
4. 4.Which of these is not safe? (a) use mains for a project (b) use small battery cells (c) stay away from pylons (d) take cells out after use
5. 5.True or false: to stay away from pylons is not safe. (a) False (b) True
6. 6.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 230 V (c) 1.5 V (d) 12 V
7. 7.True or false: to throw cells in a fire is safe. (a) False (b) True
8. 8.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) nobody (c) a younger child (d) a trusted adult
9. 9.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) an inverter socket (d) a small battery pack
10. 10.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
11. 11.True or false: to build with an adult near is safe. (a) False (b) True
12. 12.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) use a cable with cuts (d) fly kites in open fields
13. 13.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
14. 14.🔍 Which is the odd one out? (a) dry your hands first (b) use a cable with cuts (c) fly a kite near wires (d) climb an electric pole
15. 15.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
16. 16.🔍 Which is the odd one out? (a) build with an adult near (b) touch a fallen wire (c) open a phone charger (d) use a cable with cuts
17. 17.True or false: to build with an adult near is not safe. (a) True (b) False
18. 18.Which of these is safe? (a) touch a switch when wet (b) fly a kite near wires (c) throw cells in a fire (d) dry your hands first
19. 19.True or false: to use small battery cells is not safe. (a) True (b) False
20. 20.⚠️ 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
21. 21.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a fuse or MCB (d) a long wire
22. 22.True or false: to use small battery cells is safe. (a) True (b) False
23. 23.True or false: to use a cable with cuts is safe. (a) True (b) False
24. 24.True or false: to stop if a part gets hot is not safe. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) poke things in a socket (d) use small battery cells
26. 26.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a short circuit (c) an open circuit (d) a parallel circuit
27. 27.True or false: to take cells out after use is safe. (a) False (b) True
28. 28.True or false: to climb an electric pole is not safe. (a) True (b) False
29. 29.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
30. 30.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
31. 31.True or false: to climb an electric pole is safe. (a) True (b) False
32. 32.True or false: to touch a fallen wire is not safe. (a) False (b) True
33. 33.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
34. 34.Which of these is safe? (a) touch a switch when wet (b) fly kites in open fields (c) touch a fallen wire (d) open a phone charger
35. 35.True or false: to poke things in a socket is safe. (a) True (b) False
36. 36.Which of these is safe? (a) open a phone charger (b) poke things in a socket (c) build with an adult near (d) touch a fallen wire
37. 37.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
38. 38.🔍 Which is the odd one out? (a) use mains for a project (b) climb an electric pole (c) throw cells in a fire (d) stop if a part gets hot
39. 39.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
40. 40.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe

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