Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 88 · 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 touch a switch when wet is not safe. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) use mains for a project (b) dry your hands first (c) take cells out after use (d) use small battery cells
3. 3.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
4. 4.True or false: to throw cells in a fire is not safe. (a) False (b) True
5. 5.Which of these is not safe? (a) take cells out after use (b) fly kites in open fields (c) build with an adult near (d) fly a kite near wires
6. 6.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
7. 7.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
8. 8.Which of these is safe? (a) take cells out after use (b) poke things in a socket (c) climb an electric pole (d) fly a kite near wires
9. 9.🔍 Which is the odd one out? (a) stop if a part gets hot (b) touch a switch when wet (c) touch a fallen wire (d) open a phone charger
10. 10.Which of these is not safe? (a) dry your hands first (b) stop if a part gets hot (c) build with an adult near (d) throw cells in a fire
11. 11.True or false: to open a phone charger is not safe. (a) False (b) True
12. 12.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
13. 13.Which of these is not safe? (a) keep drinks far away (b) touch a switch when wet (c) build with an adult near (d) take cells out after use
14. 14.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
15. 15.⚠️ 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
16. 16.🔍 Which is the odd one out? (a) build with an adult near (b) stay away from pylons (c) open a phone charger (d) use small battery cells
17. 17.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a long wire (c) a plug top (d) a bulb
18. 18.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) pull them by the hand (c) pour water on them (d) wait and watch
19. 19.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
20. 20.True or false: to keep drinks far away is safe. (a) True (b) False
21. 21.Which of these is safe? (a) stop if a part gets hot (b) touch a switch when wet (c) fly a kite near wires (d) use mains for a project
22. 22.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
23. 23.Which of these is safe? (a) use mains for a project (b) open a phone charger (c) climb an electric pole (d) dry your hands first
24. 24.Which of these is not safe? (a) use small battery cells (b) use mains for a project (c) stay away from pylons (d) stop if a part gets hot
25. 25.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
26. 26.True or false: to take cells out after use is safe. (a) True (b) False
27. 27.True or false: to touch a switch when wet is safe. (a) False (b) True
28. 28.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a parallel circuit (c) a safe circuit (d) an open circuit
29. 29.True or false: to build with an adult near is safe. (a) False (b) True
30. 30.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
31. 31.True or false: to stop if a part gets hot is not safe. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) take cells out after use (b) touch a switch when wet (c) dry your hands first (d) fly kites in open fields
33. 33.True or false: to fly kites in open fields is not safe. (a) False (b) True
34. 34.True or false: to use mains for a project is safe. (a) True (b) False
35. 35.Which of these is not safe? (a) stay away from pylons (b) use small battery cells (c) keep drinks far away (d) poke things in a socket
36. 36.🔍 Which is the odd one out? (a) use small battery cells (b) touch a switch when wet (c) open a phone charger (d) climb an electric pole
37. 37.Which of these is safe? (a) stay away from pylons (b) use mains for a project (c) open a phone charger (d) throw cells in a fire
38. 38.Which of these is safe? (a) open a phone charger (b) touch a fallen wire (c) build with an adult near (d) touch a switch when wet
39. 39.True or false: to fly a kite near wires is safe. (a) False (b) True
40. 40.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a wall socket (d) a small battery pack

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