Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 454 · 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 short circuit (b) a parallel circuit (c) an open circuit (d) a safe circuit
2. 2.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
3. 3.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
4. 4.🔍 Which is the odd one out? (a) fly a kite near wires (b) touch a switch when wet (c) stop if a part gets hot (d) touch a fallen wire
5. 5.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
6. 6.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) it spoils the paint (d) water makes it cold
7. 7.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
8. 8.🔍 Which is the odd one out? (a) take cells out after use (b) climb an electric pole (c) touch a switch when wet (d) throw cells in a fire
9. 9.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a long wire (c) a fuse or MCB (d) a bulb
10. 10.True or false: to use mains for a project is safe. (a) False (b) True
11. 11.Which of these is not safe? (a) fly kites in open fields (b) build with an adult near (c) take cells out after use (d) use mains for a project
12. 12.Which of these is not safe? (a) use small battery cells (b) stay away from pylons (c) poke things in a socket (d) fly kites in open fields
13. 13.True or false: to stay away from pylons is not safe. (a) True (b) False
14. 14.True or false: to use a cable with cuts is not safe. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) fly kites in open fields (b) use small battery cells (c) touch a fallen wire (d) build with an adult near
16. 16.🔍 Which is the odd one out? (a) use mains for a project (b) build with an adult near (c) touch a fallen wire (d) fly a kite near wires
17. 17.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) stay away from pylons (d) open a phone charger
18. 18.True or false: to poke things in a socket is safe. (a) True (b) False
19. 19.Which of these is safe? (a) dry your hands first (b) climb an electric pole (c) use a cable with cuts (d) touch a switch when wet
20. 20.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
21. 21.Which of these is not safe? (a) throw cells in a fire (b) take cells out after use (c) use small battery cells (d) dry your hands first
22. 22.True or false: to build with an adult near is safe. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) fly a kite near wires (b) use mains for a project (c) stay away from pylons (d) poke things in a socket
24. 24.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) an inverter socket (d) a small battery pack
25. 25.Which of these is safe? (a) climb an electric pole (b) build with an adult near (c) use a cable with cuts (d) use mains for a project
26. 26.True or false: to use small battery cells is not safe. (a) False (b) True
27. 27.True or false: to take cells out after use is safe. (a) False (b) True
28. 28.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a trusted adult (c) a stranger online (d) a younger child
29. 29.True or false: to use mains for a project is not safe. (a) False (b) True
30. 30.True or false: to take cells out after use is not safe. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) use small battery cells (b) build with an adult near (c) dry your hands first (d) touch a switch when wet
32. 32.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
33. 33.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) pour water on them (c) pull them by the hand (d) wait and watch
34. 34.Which of these is not safe? (a) stay away from pylons (b) stop if a part gets hot (c) touch a switch when wet (d) keep drinks far away
35. 35.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
36. 36.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
37. 37.True or false: to dry your hands first is not safe. (a) True (b) False
38. 38.True or false: to throw cells in a fire is not safe. (a) True (b) False
39. 39.True or false: to fly kites in open fields is safe. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) keep drinks far away (b) use a cable with cuts (c) stop if a part gets hot (d) build with an adult near

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