Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 231 · 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 power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a small battery pack (d) a wall socket
2. 2.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
3. 3.Which of these is not safe? (a) touch a fallen wire (b) take cells out after use (c) dry your hands first (d) fly kites in open fields
4. 4.True or false: to build with an adult near is safe. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) use a cable with cuts (b) touch a fallen wire (c) stay away from pylons (d) use mains for a project
6. 6.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
7. 7.⚠️ 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
8. 8.True or false: to throw cells in a fire is not safe. (a) True (b) False
9. 9.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
10. 10.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 1.5 V (c) 9 V (d) 12 V
11. 11.Which of these is not safe? (a) take cells out after use (b) stay away from pylons (c) build with an adult near (d) fly a kite near wires
12. 12.True or false: to open a phone charger is safe. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) throw cells in a fire (b) stop if a part gets hot (c) open a phone charger (d) use a cable with cuts
14. 14.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
15. 15.True or false: to fly kites in open fields is not safe. (a) True (b) False
16. 16.True or false: to use a cable with cuts is not safe. (a) False (b) True
17. 17.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
18. 18.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
19. 19.True or false: to use mains for a project is not safe. (a) True (b) False
20. 20.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
21. 21.Which of these is safe? (a) use mains for a project (b) build with an adult near (c) touch a switch when wet (d) use a cable with cuts
22. 22.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water carries current (d) water makes it cold
23. 23.🔍 Which is the odd one out? (a) throw cells in a fire (b) fly kites in open fields (c) use a cable with cuts (d) touch a switch when wet
24. 24.Which of these is not safe? (a) climb an electric pole (b) keep drinks far away (c) build with an adult near (d) take cells out after use
25. 25.True or false: to stop if a part gets hot is not safe. (a) True (b) False
26. 26.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
27. 27.🔍 Which is the odd one out? (a) poke things in a socket (b) touch a switch when wet (c) dry your hands first (d) fly a kite near wires
28. 28.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
29. 29.Which of these is safe? (a) dry your hands first (b) touch a fallen wire (c) poke things in a socket (d) fly a kite near wires
30. 30.Which of these is safe? (a) poke things in a socket (b) take cells out after use (c) climb an electric pole (d) throw cells in a fire
31. 31.🔍 Which is the odd one out? (a) dry your hands first (b) touch a switch when wet (c) use small battery cells (d) build with an adult near
32. 32.🔍 Which is the odd one out? (a) climb an electric pole (b) use a cable with cuts (c) keep drinks far away (d) open a phone charger
33. 33.🔍 Which is the odd one out? (a) keep drinks far away (b) fly kites in open fields (c) use a cable with cuts (d) build with an adult near
34. 34.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
35. 35.🔍 Which is the odd one out? (a) fly a kite near wires (b) fly kites in open fields (c) build with an adult near (d) dry your hands first
36. 36.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a short circuit (d) a safe circuit
37. 37.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) wait and watch (c) shout for an adult (d) pour water on them
38. 38.True or false: to stop if a part gets hot is safe. (a) True (b) False
39. 39.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
40. 40.🔍 Which is the odd one out? (a) take cells out after use (b) poke things in a socket (c) touch a fallen wire (d) touch a switch when wet

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