Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 365 · 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.⚠️ 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) pour water on them (d) pull them by the hand
2. 2.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 1.5 V (d) 230 V
3. 3.Which of these is not safe? (a) stay away from pylons (b) fly a kite near wires (c) take cells out after use (d) stop if a part gets hot
4. 4.True or false: to use mains for a project is not safe. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) use small battery cells (b) poke things in a socket (c) keep drinks far away (d) build with an adult near
6. 6.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) an inverter socket (c) a wall socket (d) a mains extension board
7. 7.Which of these is not safe? (a) use small battery cells (b) dry your hands first (c) keep drinks far away (d) poke things in a socket
8. 8.🔍 Which is the odd one out? (a) open a phone charger (b) fly a kite near wires (c) use a cable with cuts (d) take cells out after use
9. 9.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
10. 10.True or false: to use small battery cells is not safe. (a) True (b) False
11. 11.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
12. 12.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) build with an adult near (d) touch a fallen wire
13. 13.🔍 Which is the odd one out? (a) use mains for a project (b) climb an electric pole (c) poke things in a socket (d) stop if a part gets hot
14. 14.🔍 Which is the odd one out? (a) climb an electric pole (b) fly kites in open fields (c) use mains for a project (d) throw cells in a fire
15. 15.Which of these is safe? (a) climb an electric pole (b) poke things in a socket (c) fly a kite near wires (d) keep drinks far away
16. 16.Which of these is not safe? (a) stop if a part gets hot (b) use a cable with cuts (c) dry your hands first (d) build with an adult near
17. 17.Which of these is safe? (a) use small battery cells (b) use mains for a project (c) touch a fallen wire (d) throw cells in a fire
18. 18.True or false: to dry your hands first is not safe. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) fly kites in open fields (b) use a cable with cuts (c) use small battery cells (d) build with an adult near
20. 20.True or false: to use mains for a project is safe. (a) False (b) True
21. 21.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) it spoils the paint (d) water makes it cold
22. 22.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
23. 23.🔍 Which is the odd one out? (a) keep drinks far away (b) use mains for a project (c) use small battery cells (d) take cells out after use
24. 24.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
25. 25.True or false: to throw cells in a fire is not safe. (a) False (b) True
26. 26.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
27. 27.⚠️ 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
28. 28.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
29. 29.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
30. 30.Which of these is not safe? (a) fly kites in open fields (b) stop if a part gets hot (c) keep drinks far away (d) climb an electric pole
31. 31.True or false: to use small battery cells is safe. (a) False (b) True
32. 32.True or false: to stop if a part gets hot is not safe. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) keep drinks far away (b) open a phone charger (c) use a cable with cuts (d) touch a fallen wire
34. 34.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
35. 35.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) nobody (d) a trusted adult
36. 36.Which of these is not safe? (a) stop if a part gets hot (b) open a phone charger (c) use small battery cells (d) dry your hands first
37. 37.Which of these is safe? (a) throw cells in a fire (b) poke things in a socket (c) use mains for a project (d) dry your hands first
38. 38.True or false: to stop if a part gets hot is safe. (a) False (b) True
39. 39.True or false: to build with an adult near is not safe. (a) True (b) False
40. 40.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a safe circuit (c) an open circuit (d) a parallel circuit

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