Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 962 · 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) open a phone charger (b) use mains for a project (c) use a cable with cuts (d) dry your hands first
2. 2.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it is just untidy (c) water makes it cold (d) it spoils the paint
3. 3.🔍 Which is the odd one out? (a) touch a fallen wire (b) throw cells in a fire (c) stop if a part gets hot (d) climb an electric pole
4. 4.True or false: to use mains for a project is safe. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) use a cable with cuts (b) poke things in a socket (c) open a phone charger (d) dry your hands first
6. 6.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a small battery pack (c) a wall socket (d) a mains extension board
7. 7.True or false: to stop if a part gets hot is safe. (a) False (b) True
8. 8.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
9. 9.Which of these is safe? (a) use mains for a project (b) stop if a part gets hot (c) throw cells in a fire (d) fly a kite near wires
10. 10.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a parallel circuit (c) a short circuit (d) a safe circuit
11. 11.True or false: to stop if a part gets hot is not safe. (a) True (b) False
12. 12.Which of these is safe? (a) use small battery cells (b) fly a kite near wires (c) climb an electric pole (d) use a cable with cuts
13. 13.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 230 V (c) 9 V (d) 12 V
14. 14.True or false: to poke things in a socket is not safe. (a) False (b) True
15. 15.True or false: to fly kites in open fields is not safe. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) stay away from pylons (b) poke things in a socket (c) climb an electric pole (d) use mains for a project
17. 17.True or false: to take cells out after use is not safe. (a) False (b) True
18. 18.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
19. 19.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
20. 20.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
21. 21.Which of these is not safe? (a) take cells out after use (b) dry your hands first (c) touch a switch when wet (d) keep drinks far away
22. 22.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
23. 23.True or false: to fly kites in open fields is safe. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) touch a fallen wire (b) throw cells in a fire (c) poke things in a socket (d) build with an adult near
25. 25.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) nobody (d) a stranger online
26. 26.True or false: to touch a switch when wet is not safe. (a) False (b) True
27. 27.Which of these is safe? (a) poke things in a socket (b) open a phone charger (c) touch a fallen wire (d) stay away from pylons
28. 28.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
29. 29.Which of these is not safe? (a) take cells out after use (b) stay away from pylons (c) build with an adult near (d) throw cells in a fire
30. 30.🔍 Which is the odd one out? (a) use small battery cells (b) fly a kite near wires (c) keep drinks far away (d) dry your hands first
31. 31.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
32. 32.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
33. 33.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
34. 34.🔍 Which is the odd one out? (a) stop if a part gets hot (b) stay away from pylons (c) touch a switch when wet (d) use small battery cells
35. 35.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) pour water on them (c) wait and watch (d) shout for an adult
36. 36.True or false: to use small battery cells is not safe. (a) True (b) False
37. 37.True or false: to use a cable with cuts is safe. (a) True (b) False
38. 38.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a plug top (c) a long wire (d) a bulb
39. 39.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
40. 40.Which of these is not safe? (a) use small battery cells (b) take cells out after use (c) keep drinks far away (d) touch a fallen wire

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