Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 164 · 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 open a phone charger? (a) safe (b) not safe
2. 2.🔍 Which is the odd one out? (a) use small battery cells (b) use mains for a project (c) fly a kite near wires (d) touch a switch when wet
3. 3.🔍 Which is the odd one out? (a) keep drinks far away (b) stay away from pylons (c) fly a kite near wires (d) dry your hands first
4. 4.Which of these is safe? (a) fly a kite near wires (b) take cells out after use (c) touch a switch when wet (d) climb an electric pole
5. 5.Which of these is not safe? (a) take cells out after use (b) keep drinks far away (c) stop if a part gets hot (d) fly a kite near wires
6. 6.True or false: to poke things in a socket is safe. (a) True (b) False
7. 7.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
8. 8.True or false: to build with an adult near is not safe. (a) True (b) False
9. 9.True or false: to touch a switch when wet is safe. (a) True (b) False
10. 10.Which of these is not safe? (a) touch a switch when wet (b) keep drinks far away (c) build with an adult near (d) stop if a part gets hot
11. 11.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a plug top (c) a fuse or MCB (d) a long wire
12. 12.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) a safe circuit (c) an open circuit (d) a short circuit
13. 13.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pour water on them (c) shout for an adult (d) pull them by the hand
14. 14.Which of these is not safe? (a) take cells out after use (b) open a phone charger (c) use small battery cells (d) keep drinks far away
15. 15.True or false: to throw cells in a fire is safe. (a) False (b) True
16. 16.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 9 V (c) 12 V (d) 230 V
17. 17.True or false: to fly kites in open fields is safe. (a) True (b) False
18. 18.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
19. 19.Which of these is safe? (a) throw cells in a fire (b) touch a fallen wire (c) touch a switch when wet (d) keep drinks far away
20. 20.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
21. 21.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
22. 22.🔍 Which is the odd one out? (a) climb an electric pole (b) stop if a part gets hot (c) open a phone charger (d) use a cable with cuts
23. 23.🔍 Which is the odd one out? (a) use mains for a project (b) use a cable with cuts (c) touch a fallen wire (d) dry your hands first
24. 24.True or false: to use small battery cells is safe. (a) False (b) True
25. 25.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) touch a fallen wire (d) dry your hands first
26. 26.Which of these is safe? (a) climb an electric pole (b) open a phone charger (c) dry your hands first (d) touch a fallen wire
27. 27.⚠️ 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
28. 28.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
29. 29.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
30. 30.Which of these is not safe? (a) take cells out after use (b) use small battery cells (c) fly kites in open fields (d) poke things in a socket
31. 31.🔍 Which is the odd one out? (a) build with an adult near (b) fly kites in open fields (c) keep drinks far away (d) use mains for a project
32. 32.🔍 Which is the odd one out? (a) take cells out after use (b) use small battery cells (c) climb an electric pole (d) stop if a part gets hot
33. 33.True or false: to touch a fallen wire is not safe. (a) True (b) False
34. 34.Which of these is not safe? (a) use a cable with cuts (b) fly kites in open fields (c) stay away from pylons (d) dry your hands first
35. 35.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
36. 36.⚠️ Who should be with you when you build a circuit? (a) a trusted adult (b) a younger child (c) a stranger online (d) nobody
37. 37.Which of these is safe? (a) use mains for a project (b) fly a kite near wires (c) throw cells in a fire (d) fly kites in open fields
38. 38.Which of these is not safe? (a) take cells out after use (b) fly kites in open fields (c) dry your hands first (d) use mains for a project
39. 39.⚠️ 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
40. 40.🔍 Which is the odd one out? (a) use small battery cells (b) take cells out after use (c) open a phone charger (d) stay away from pylons

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