Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 310 · 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.⚠️ Why must we never touch switches with wet hands? (a) it spoils the paint (b) it is just untidy (c) water carries current (d) water makes it cold
2. 2.True or false: to take cells out after use is not safe. (a) True (b) False
3. 3.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) poke things in a socket (d) dry your hands first
4. 4.Which of these is not safe? (a) fly kites in open fields (b) build with an adult near (c) keep drinks far away (d) use mains for a project
5. 5.True or false: to stop if a part gets hot is not safe. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) build with an adult near (b) dry your hands first (c) use small battery cells (d) use mains for a project
7. 7.Which of these is not safe? (a) keep drinks far away (b) open a phone charger (c) fly kites in open fields (d) dry your hands first
8. 8.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a fuse or MCB (c) a long wire (d) a plug top
9. 9.Which of these is safe? (a) touch a switch when wet (b) fly a kite near wires (c) keep drinks far away (d) poke things in a socket
10. 10.Which of these is safe? (a) use a cable with cuts (b) touch a switch when wet (c) poke things in a socket (d) fly kites in open fields
11. 11.True or false: to touch a switch when wet is safe. (a) True (b) False
12. 12.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) an inverter socket (c) a wall socket (d) a mains extension board
13. 13.🔍 Which is the odd one out? (a) dry your hands first (b) keep drinks far away (c) build with an adult near (d) poke things in a socket
14. 14.Which of these is safe? (a) fly a kite near wires (b) build with an adult near (c) touch a switch when wet (d) touch a fallen wire
15. 15.Which of these is safe? (a) use a cable with cuts (b) dry your hands first (c) touch a switch when wet (d) fly a kite near wires
16. 16.True or false: to climb an electric pole is safe. (a) False (b) True
17. 17.True or false: to stay away from pylons is safe. (a) False (b) True
18. 18.True or false: to use small battery cells is safe. (a) False (b) True
19. 19.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
20. 20.⚠️ 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 safe circuit (d) a short circuit
21. 21.🔍 Which is the odd one out? (a) take cells out after use (b) fly kites in open fields (c) dry your hands first (d) fly a kite near wires
22. 22.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
23. 23.Which of these is not safe? (a) build with an adult near (b) touch a fallen wire (c) dry your hands first (d) stay away from pylons
24. 24.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
25. 25.True or false: to use a cable with cuts is safe. (a) True (b) False
26. 26.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 12 V (d) 230 V
27. 27.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) shout for an adult (b) wait and watch (c) pour water on them (d) pull them by the hand
28. 28.True or false: to keep drinks far away is not safe. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) use a cable with cuts (b) climb an electric pole (c) touch a fallen wire (d) stop if a part gets hot
30. 30.True or false: to fly kites in open fields is not safe. (a) True (b) False
31. 31.Which of these is safe? (a) stay away from pylons (b) use a cable with cuts (c) poke things in a socket (d) touch a fallen wire
32. 32.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
33. 33.True or false: to touch a fallen wire is not safe. (a) False (b) True
34. 34.True or false: to use mains for a project is safe. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) fly a kite near wires (b) climb an electric pole (c) use small battery cells (d) touch a switch when wet
36. 36.🔍 Which is the odd one out? (a) take cells out after use (b) use a cable with cuts (c) use small battery cells (d) stay away from pylons
37. 37.True or false: to dry your hands first is not safe. (a) True (b) False
38. 38.Which of these is not safe? (a) stay away from pylons (b) build with an adult near (c) use small battery cells (d) throw cells in a fire
39. 39.True or false: to fly a kite near wires is safe. (a) False (b) True
40. 40.Which of these is safe? (a) touch a switch when wet (b) take cells out after use (c) throw cells in a fire (d) fly a kite near wires

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