Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 668 · 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 is just untidy (b) water makes it cold (c) it spoils the paint (d) water carries current
2. 2.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
3. 3.True or false: to use small battery cells is not safe. (a) True (b) False
4. 4.True or false: to touch a fallen wire is safe. (a) True (b) False
5. 5.Which of these is not safe? (a) throw cells in a fire (b) dry your hands first (c) keep drinks far away (d) use small battery cells
6. 6.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
7. 7.True or false: to fly a kite near wires is not safe. (a) False (b) True
8. 8.True or false: to touch a switch when wet is safe. (a) True (b) False
9. 9.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) an inverter socket (c) a small battery pack (d) a wall socket
10. 10.Which of these is safe? (a) use mains for a project (b) keep drinks far away (c) open a phone charger (d) fly a kite near wires
11. 11.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
12. 12.True or false: to fly kites in open fields is safe. (a) True (b) False
13. 13.True or false: to build with an adult near is not safe. (a) False (b) True
14. 14.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
15. 15.True or false: to take cells out after use is safe. (a) False (b) True
16. 16.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
17. 17.True or false: to dry your hands first is safe. (a) False (b) True
18. 18.Which of these is not safe? (a) touch a fallen wire (b) take cells out after use (c) keep drinks far away (d) use small battery cells
19. 19.🔍 Which is the odd one out? (a) climb an electric pole (b) keep drinks far away (c) use small battery cells (d) build with an adult near
20. 20.Which of these is not safe? (a) poke things in a socket (b) dry your hands first (c) take cells out after use (d) stop if a part gets hot
21. 21.Which of these is safe? (a) use a cable with cuts (b) poke things in a socket (c) take cells out after use (d) use mains for a project
22. 22.True or false: to touch a fallen wire is not safe. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) open a phone charger (b) use small battery cells (c) stay away from pylons (d) stop if a part gets hot
24. 24.🔍 Which is the odd one out? (a) stay away from pylons (b) touch a switch when wet (c) open a phone charger (d) touch a fallen wire
25. 25.True or false: to keep drinks far away is safe. (a) False (b) True
26. 26.Which of these is safe? (a) climb an electric pole (b) throw cells in a fire (c) touch a fallen wire (d) dry your hands first
27. 27.🔍 Which is the odd one out? (a) open a phone charger (b) climb an electric pole (c) touch a switch when wet (d) keep drinks far away
28. 28.Which of these is safe? (a) touch a fallen wire (b) build with an adult near (c) throw cells in a fire (d) touch a switch when wet
29. 29.True or false: to take cells out after use is not safe. (a) True (b) False
30. 30.True or false: to throw cells in a fire is safe. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) poke things in a socket (b) fly a kite near wires (c) take cells out after use (d) throw cells in a fire
32. 32.⚠️ 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
33. 33.Which of these is not safe? (a) build with an adult near (b) stop if a part gets hot (c) open a phone charger (d) dry your hands first
34. 34.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 9 V (c) 1.5 V (d) 12 V
35. 35.🔍 Which is the odd one out? (a) use a cable with cuts (b) touch a switch when wet (c) throw cells in a fire (d) fly kites in open fields
36. 36.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a plug top (c) a fuse or MCB (d) a bulb
37. 37.True or false: to climb an electric pole is not safe. (a) False (b) True
38. 38.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a trusted adult (c) a stranger online (d) nobody
39. 39.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
40. 40.🔍 Which is the odd one out? (a) take cells out after use (b) build with an adult near (c) use small battery cells (d) throw cells in a fire

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