Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 670 · 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 safe circuit (b) a short circuit (c) a parallel circuit (d) an open circuit
2. 2.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
3. 3.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
4. 4.True or false: to dry your hands first is safe. (a) False (b) True
5. 5.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
6. 6.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
7. 7.Which of these is not safe? (a) stop if a part gets hot (b) dry your hands first (c) touch a switch when wet (d) keep drinks far away
8. 8.Which of these is safe? (a) throw cells in a fire (b) use a cable with cuts (c) touch a fallen wire (d) dry your hands first
9. 9.Which of these is safe? (a) climb an electric pole (b) poke things in a socket (c) keep drinks far away (d) fly a kite near wires
10. 10.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
11. 11.True or false: to throw cells in a fire is safe. (a) True (b) False
12. 12.Which of these is not safe? (a) fly kites in open fields (b) take cells out after use (c) open a phone charger (d) stop if a part gets hot
13. 13.True or false: to take cells out after use is safe. (a) True (b) False
14. 14.True or false: to use small battery cells is not safe. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) stay away from pylons (b) use mains for a project (c) dry your hands first (d) use small battery cells
16. 16.🔍 Which is the odd one out? (a) use a cable with cuts (b) dry your hands first (c) poke things in a socket (d) throw cells in a fire
17. 17.Which of these is not safe? (a) take cells out after use (b) poke things in a socket (c) build with an adult near (d) stay away from pylons
18. 18.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) it is just untidy (c) water makes it cold (d) it spoils the paint
19. 19.Which of these is safe? (a) throw cells in a fire (b) poke things in a socket (c) use small battery cells (d) touch a switch when wet
20. 20.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) an inverter socket (c) a small battery pack (d) a mains extension board
21. 21.Which of these is not safe? (a) stop if a part gets hot (b) take cells out after use (c) fly kites in open fields (d) touch a fallen wire
22. 22.True or false: to use mains for a project is not safe. (a) False (b) True
23. 23.Which of these is not safe? (a) keep drinks far away (b) throw cells in a fire (c) stay away from pylons (d) use small battery cells
24. 24.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) climb an electric pole (d) fly kites in open fields
25. 25.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
26. 26.🔍 Which is the odd one out? (a) fly kites in open fields (b) touch a switch when wet (c) keep drinks far away (d) stop if a part gets hot
27. 27.🔍 Which is the odd one out? (a) build with an adult near (b) use small battery cells (c) open a phone charger (d) dry your hands first
28. 28.Which of these is not safe? (a) take cells out after use (b) keep drinks far away (c) climb an electric pole (d) build with an adult near
29. 29.True or false: to fly a kite near wires is safe. (a) False (b) True
30. 30.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
31. 31.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
32. 32.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a bulb (c) a fuse or MCB (d) a plug top
33. 33.True or false: to poke things in a socket is safe. (a) True (b) False
34. 34.Which of these is safe? (a) use a cable with cuts (b) climb an electric pole (c) touch a switch when wet (d) build with an adult near
35. 35.🔍 Which is the odd one out? (a) fly a kite near wires (b) throw cells in a fire (c) open a phone charger (d) build with an adult near
36. 36.True or false: to throw cells in a fire is not safe. (a) True (b) False
37. 37.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
38. 38.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
39. 39.True or false: to poke things in a socket is not safe. (a) False (b) True
40. 40.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 1.5 V (c) 230 V (d) 12 V

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