Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 395 · 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) touch a switch when wet (b) open a phone charger (c) dry your hands first (d) use mains for a project
2. 2.🔍 Which is the odd one out? (a) fly a kite near wires (b) use a cable with cuts (c) throw cells in a fire (d) keep drinks far away
3. 3.True or false: to build with an adult near is safe. (a) False (b) True
4. 4.True or false: to climb an electric pole is not safe. (a) True (b) False
5. 5.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
6. 6.Which of these is safe? (a) stay away from pylons (b) open a phone charger (c) touch a fallen wire (d) touch a switch when wet
7. 7.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
8. 8.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
9. 9.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
10. 10.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
11. 11.True or false: to keep drinks far away is not safe. (a) False (b) True
12. 12.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) a mains extension board (d) an inverter socket
13. 13.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
14. 14.Which of these is safe? (a) touch a fallen wire (b) build with an adult near (c) poke things in a socket (d) touch a switch when wet
15. 15.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
16. 16.True or false: to stop if a part gets hot is safe. (a) False (b) True
17. 17.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) a short circuit (c) a parallel circuit (d) an open circuit
18. 18.True or false: to poke things in a socket is not safe. (a) True (b) False
19. 19.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) wait and watch (c) pour water on them (d) shout for an adult
20. 20.🔍 Which is the odd one out? (a) poke things in a socket (b) fly a kite near wires (c) take cells out after use (d) touch a switch when wet
21. 21.🔍 Which is the odd one out? (a) build with an adult near (b) dry your hands first (c) keep drinks far away (d) use mains for a project
22. 22.True or false: to stay away from pylons is not safe. (a) True (b) False
23. 23.True or false: to keep drinks far away is safe. (a) False (b) True
24. 24.True or false: to fly kites in open fields is safe. (a) False (b) True
25. 25.True or false: to build with an adult near is not safe. (a) True (b) False
26. 26.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a plug top (c) a bulb (d) a fuse or MCB
27. 27.Which of these is safe? (a) poke things in a socket (b) touch a fallen wire (c) fly kites in open fields (d) use mains for a project
28. 28.True or false: to fly a kite near wires is safe. (a) True (b) False
29. 29.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
30. 30.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
31. 31.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water makes it cold (c) water carries current (d) it spoils the paint
32. 32.True or false: to use mains for a project is not safe. (a) True (b) False
33. 33.Which of these is safe? (a) touch a switch when wet (b) use mains for a project (c) keep drinks far away (d) poke things in a socket
34. 34.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V
35. 35.Which of these is safe? (a) use small battery cells (b) touch a switch when wet (c) use a cable with cuts (d) touch a fallen wire
36. 36.🔍 Which is the odd one out? (a) touch a switch when wet (b) stop if a part gets hot (c) keep drinks far away (d) dry your hands first
37. 37.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
38. 38.🔍 Which is the odd one out? (a) take cells out after use (b) climb an electric pole (c) use small battery cells (d) build with an adult near
39. 39.🔍 Which is the odd one out? (a) build with an adult near (b) use small battery cells (c) take cells out after use (d) poke things in a socket
40. 40.🔍 Which is the odd one out? (a) climb an electric pole (b) use small battery cells (c) open a phone charger (d) use mains for a project

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