Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 447 · 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.True or false: to fly a kite near wires is not safe. (a) False (b) True
2. 2.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a fuse or MCB (c) a long wire (d) a bulb
3. 3.Which of these is not safe? (a) poke things in a socket (b) build with an adult near (c) keep drinks far away (d) dry your hands first
4. 4.True or false: to use mains for a project is safe. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) build with an adult near (b) take cells out after use (c) use a cable with cuts (d) use small battery cells
6. 6.Which of these is safe? (a) throw cells in a fire (b) open a phone charger (c) keep drinks far away (d) fly a kite near wires
7. 7.Which of these is not safe? (a) stop if a part gets hot (b) use small battery cells (c) touch a switch when wet (d) keep drinks far away
8. 8.Which of these is safe? (a) open a phone charger (b) fly a kite near wires (c) throw cells in a fire (d) build with an adult near
9. 9.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
10. 10.True or false: to touch a switch when wet is not safe. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) dry your hands first (b) build with an adult near (c) fly a kite near wires (d) stop if a part gets hot
12. 12.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
13. 13.Which of these is safe? (a) climb an electric pole (b) use mains for a project (c) open a phone charger (d) take cells out after use
14. 14.True or false: to stay away from pylons is not safe. (a) True (b) False
15. 15.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it is just untidy (d) it spoils the paint
16. 16.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
17. 17.⚠️ Which power source should children use for electronics projects? (a) a small battery pack (b) a wall socket (c) a mains extension board (d) an inverter socket
18. 18.True or false: to dry your hands first is not safe. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) fly kites in open fields (b) stay away from pylons (c) keep drinks far away (d) poke things in a socket
20. 20.🔍 Which is the odd one out? (a) use mains for a project (b) stay away from pylons (c) open a phone charger (d) climb an electric pole
21. 21.🔍 Which is the odd one out? (a) dry your hands first (b) climb an electric pole (c) take cells out after use (d) stop if a part gets hot
22. 22.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
23. 23.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
24. 24.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) an open circuit (b) a safe circuit (c) a parallel circuit (d) a short circuit
25. 25.🔍 Which is the odd one out? (a) keep drinks far away (b) build with an adult near (c) take cells out after use (d) touch a switch when wet
26. 26.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
27. 27.Which of these is not safe? (a) take cells out after use (b) build with an adult near (c) use a cable with cuts (d) keep drinks far away
28. 28.🔍 Which is the odd one out? (a) stay away from pylons (b) fly kites in open fields (c) stop if a part gets hot (d) open a phone charger
29. 29.Which of these is safe? (a) fly kites in open fields (b) touch a switch when wet (c) use a cable with cuts (d) use mains for a project
30. 30.True or false: to use small battery cells is not safe. (a) False (b) True
31. 31.True or false: to climb an electric pole is safe. (a) True (b) False
32. 32.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
33. 33.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use a cable with cuts (c) touch a switch when wet (d) touch a fallen wire
34. 34.🔍 Which is the odd one out? (a) keep drinks far away (b) build with an adult near (c) throw cells in a fire (d) stay away from pylons
35. 35.Which of these is safe? (a) use a cable with cuts (b) open a phone charger (c) use small battery cells (d) touch a fallen wire
36. 36.⚠️ About how many volts do home sockets in India supply? (a) 1.5 V (b) 12 V (c) 9 V (d) 230 V
37. 37.Which of these is safe? (a) stay away from pylons (b) climb an electric pole (c) fly a kite near wires (d) use a cable with cuts
38. 38.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
39. 39.True or false: to keep drinks far away is not safe. (a) False (b) True
40. 40.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe

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