Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 206 · 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.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a parallel circuit (b) an open circuit (c) a safe circuit (d) a short circuit
2. 2.Which of these is safe? (a) use mains for a project (b) build with an adult near (c) touch a switch when wet (d) throw cells in a fire
3. 3.True or false: to take cells out after use is not safe. (a) True (b) False
4. 4.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 1.5 V (c) 9 V (d) 230 V
5. 5.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) water carries current (c) it is just untidy (d) water makes it cold
6. 6.Which of these is safe? (a) fly a kite near wires (b) dry your hands first (c) poke things in a socket (d) touch a switch when wet
7. 7.Which of these is not safe? (a) fly kites in open fields (b) stay away from pylons (c) stop if a part gets hot (d) use a cable with cuts
8. 8.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) touch a switch when wet (d) take cells out after use
9. 9.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
10. 10.Which of these is not safe? (a) keep drinks far away (b) climb an electric pole (c) build with an adult near (d) take cells out after use
11. 11.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
12. 12.True or false: to fly a kite near wires is not safe. (a) False (b) True
13. 13.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
14. 14.🔍 Which is the odd one out? (a) keep drinks far away (b) take cells out after use (c) stop if a part gets hot (d) open a phone charger
15. 15.True or false: to stay away from pylons is safe. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) keep drinks far away (b) touch a fallen wire (c) build with an adult near (d) fly kites in open fields
17. 17.True or false: to stop if a part gets hot is safe. (a) True (b) False
18. 18.⚠️ Who should be with you when you build a circuit? (a) a stranger online (b) a younger child (c) a trusted adult (d) nobody
19. 19.🔍 Which is the odd one out? (a) fly kites in open fields (b) build with an adult near (c) dry your hands first (d) touch a switch when wet
20. 20.Which of these is safe? (a) use small battery cells (b) touch a fallen wire (c) open a phone charger (d) use mains for a project
21. 21.True or false: to fly a kite near wires is safe. (a) True (b) False
22. 22.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) an inverter socket (c) a wall socket (d) a small battery pack
23. 23.Which of these is not safe? (a) take cells out after use (b) stop if a part gets hot (c) fly a kite near wires (d) keep drinks far away
24. 24.True or false: to build with an adult near is not safe. (a) False (b) True
25. 25.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
26. 26.Which of these is safe? (a) poke things in a socket (b) touch a fallen wire (c) stop if a part gets hot (d) climb an electric pole
27. 27.True or false: to dry your hands first is not safe. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) use small battery cells (b) dry your hands first (c) stay away from pylons (d) poke things in a socket
29. 29.Which of these is safe? (a) open a phone charger (b) poke things in a socket (c) use mains for a project (d) fly kites in open fields
30. 30.⚠️ 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) shout for an adult (d) pour water on them
31. 31.True or false: to touch a switch when wet is not safe. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) stop if a part gets hot (b) take cells out after use (c) use small battery cells (d) climb an electric pole
33. 33.True or false: to open a phone charger is safe. (a) False (b) True
34. 34.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
35. 35.True or false: to touch a fallen wire is safe. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) poke things in a socket (b) use a cable with cuts (c) touch a fallen wire (d) stay away from pylons
37. 37.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
38. 38.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a fuse or MCB (d) a long wire
39. 39.🔍 Which is the odd one out? (a) touch a fallen wire (b) use small battery cells (c) poke things in a socket (d) use a cable with cuts
40. 40.True or false: to build with an adult near is safe. (a) False (b) True

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