Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 998 · 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 safe? (a) use a cable with cuts (b) throw cells in a fire (c) build with an adult near (d) poke things in a socket
2. 2.True or false: to touch a fallen wire is not safe. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) fly kites in open fields (b) keep drinks far away (c) climb an electric pole (d) use small battery cells
4. 4.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a short circuit (c) an open circuit (d) a safe circuit
5. 5.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
6. 6.Which of these is safe? (a) keep drinks far away (b) touch a fallen wire (c) touch a switch when wet (d) open a phone charger
7. 7.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it spoils the paint (c) it is just untidy (d) water makes it cold
8. 8.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
9. 9.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) a trusted adult (d) nobody
10. 10.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a plug top (c) a long wire (d) a fuse or MCB
11. 11.🔍 Which is the odd one out? (a) stay away from pylons (b) keep drinks far away (c) poke things in a socket (d) use small battery cells
12. 12.🔍 Which is the odd one out? (a) fly a kite near wires (b) keep drinks far away (c) use small battery cells (d) stop if a part gets hot
13. 13.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
14. 14.True or false: to throw cells in a fire is not safe. (a) True (b) False
15. 15.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a mains extension board (c) an inverter socket (d) a wall socket
16. 16.🔍 Which is the odd one out? (a) keep drinks far away (b) use a cable with cuts (c) touch a switch when wet (d) use mains for a project
17. 17.🔍 Which is the odd one out? (a) open a phone charger (b) throw cells in a fire (c) use mains for a project (d) build with an adult near
18. 18.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
19. 19.🔍 Which is the odd one out? (a) climb an electric pole (b) fly kites in open fields (c) touch a fallen wire (d) throw cells in a fire
20. 20.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 230 V (d) 12 V
21. 21.True or false: to climb an electric pole is not safe. (a) False (b) True
22. 22.Which of these is not safe? (a) stop if a part gets hot (b) touch a switch when wet (c) take cells out after use (d) fly kites in open fields
23. 23.Which of these is not safe? (a) stay away from pylons (b) take cells out after use (c) climb an electric pole (d) use small battery cells
24. 24.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
25. 25.Which of these is safe? (a) poke things in a socket (b) throw cells in a fire (c) stay away from pylons (d) use a cable with cuts
26. 26.🔍 Which is the odd one out? (a) use a cable with cuts (b) use small battery cells (c) touch a switch when wet (d) touch a fallen wire
27. 27.True or false: to fly kites in open fields is safe. (a) False (b) True
28. 28.Which of these is not safe? (a) stop if a part gets hot (b) build with an adult near (c) take cells out after use (d) use mains for a project
29. 29.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
30. 30.🔍 Which is the odd one out? (a) keep drinks far away (b) take cells out after use (c) touch a switch when wet (d) stay away from pylons
31. 31.True or false: to touch a switch when wet is not safe. (a) False (b) True
32. 32.True or false: to stop if a part gets hot is safe. (a) True (b) False
33. 33.True or false: to fly kites in open fields is not safe. (a) True (b) False
34. 34.True or false: to build with an adult near is safe. (a) False (b) True
35. 35.Which of these is safe? (a) poke things in a socket (b) open a phone charger (c) fly kites in open fields (d) fly a kite near wires
36. 36.True or false: to build with an adult near is not safe. (a) False (b) True
37. 37.Which of these is not safe? (a) stay away from pylons (b) keep drinks far away (c) stop if a part gets hot (d) throw cells in a fire
38. 38.True or false: to open a phone charger is safe. (a) True (b) False
39. 39.True or false: to keep drinks far away is safe. (a) False (b) True
40. 40.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe

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