Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 24 · 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.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
2. 2.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) touch a fallen wire (d) use small battery cells
3. 3.True or false: to use a cable with cuts is safe. (a) False (b) True
4. 4.Which of these is safe? (a) use a cable with cuts (b) stay away from pylons (c) fly a kite near wires (d) throw cells in a fire
5. 5.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
6. 6.🔍 Which is the odd one out? (a) stop if a part gets hot (b) fly kites in open fields (c) build with an adult near (d) throw cells in a fire
7. 7.Which of these is not safe? (a) build with an adult near (b) use mains for a project (c) keep drinks far away (d) take cells out after use
8. 8.Which of these is not safe? (a) stop if a part gets hot (b) take cells out after use (c) stay away from pylons (d) throw cells in a fire
9. 9.Which of these is not safe? (a) use small battery cells (b) touch a switch when wet (c) build with an adult near (d) dry your hands first
10. 10.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a bulb (c) a long wire (d) a plug top
11. 11.🔍 Which is the odd one out? (a) poke things in a socket (b) throw cells in a fire (c) fly a kite near wires (d) use small battery cells
12. 12.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
13. 13.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) a trusted adult (d) nobody
14. 14.Which of these is safe? (a) poke things in a socket (b) climb an electric pole (c) fly a kite near wires (d) dry your hands first
15. 15.🔍 Which is the odd one out? (a) poke things in a socket (b) open a phone charger (c) stay away from pylons (d) use mains for a project
16. 16.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
17. 17.🔍 Which is the odd one out? (a) throw cells in a fire (b) use a cable with cuts (c) use mains for a project (d) build with an adult near
18. 18.True or false: to touch a switch when wet is safe. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) keep drinks far away (b) touch a switch when wet (c) use small battery cells (d) build with an adult near
20. 20.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
21. 21.🔍 Which is the odd one out? (a) fly kites in open fields (b) stay away from pylons (c) poke things in a socket (d) use small battery cells
22. 22.⚠️ 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
23. 23.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) shout for an adult (c) wait and watch (d) pour water on them
24. 24.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
25. 25.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) an inverter socket (d) a mains extension board
26. 26.Which of these is not safe? (a) fly kites in open fields (b) fly a kite near wires (c) build with an adult near (d) use small battery cells
27. 27.🔍 Which is the odd one out? (a) stop if a part gets hot (b) open a phone charger (c) touch a fallen wire (d) touch a switch when wet
28. 28.True or false: to dry your hands first is not safe. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) use a cable with cuts (b) keep drinks far away (c) fly kites in open fields (d) stay away from pylons
30. 30.Which of these is safe? (a) use mains for a project (b) fly a kite near wires (c) stop if a part gets hot (d) climb an electric pole
31. 31.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
32. 32.🔍 Which is the odd one out? (a) fly a kite near wires (b) poke things in a socket (c) fly kites in open fields (d) touch a switch when wet
33. 33.True or false: to fly kites in open fields is safe. (a) True (b) False
34. 34.Which of these is safe? (a) poke things in a socket (b) keep drinks far away (c) fly a kite near wires (d) use a cable with cuts
35. 35.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
36. 36.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a parallel circuit (c) a short circuit (d) an open circuit
37. 37.Which of these is safe? (a) use a cable with cuts (b) use small battery cells (c) touch a switch when wet (d) climb an electric pole
38. 38.True or false: to touch a switch when wet is not safe. (a) True (b) False
39. 39.True or false: to throw cells in a fire is safe. (a) True (b) False
40. 40.True or false: to stay away from pylons is not safe. (a) False (b) True

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