Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 744 · 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 parallel circuit (b) an open circuit (c) a safe circuit (d) a short circuit
2. 2.Which of these is safe? (a) poke things in a socket (b) use small battery cells (c) touch a switch when wet (d) climb an electric pole
3. 3.🔍 Which is the odd one out? (a) climb an electric pole (b) fly kites in open fields (c) touch a switch when wet (d) use a cable with cuts
4. 4.🔍 Which is the odd one out? (a) touch a fallen wire (b) stay away from pylons (c) open a phone charger (d) use a cable with cuts
5. 5.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
6. 6.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) it spoils the paint (c) water carries current (d) it is just untidy
7. 7.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
8. 8.🔍 Which is the odd one out? (a) dry your hands first (b) take cells out after use (c) use small battery cells (d) throw cells in a fire
9. 9.True or false: to take cells out after use is not safe. (a) False (b) True
10. 10.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
11. 11.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
12. 12.True or false: to keep drinks far away is not safe. (a) True (b) False
13. 13.Which of these is safe? (a) build with an adult near (b) touch a fallen wire (c) throw cells in a fire (d) use a cable with cuts
14. 14.⚠️ 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) wait and watch (d) pull them by the hand
15. 15.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
16. 16.True or false: to climb an electric pole is safe. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) use a cable with cuts (b) throw cells in a fire (c) climb an electric pole (d) use small battery cells
18. 18.Which of these is not safe? (a) fly a kite near wires (b) keep drinks far away (c) take cells out after use (d) stop if a part gets hot
19. 19.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
20. 20.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 9 V (c) 230 V (d) 1.5 V
21. 21.True or false: to throw cells in a fire is safe. (a) True (b) False
22. 22.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a long wire (d) a fuse or MCB
23. 23.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
24. 24.Which of these is not safe? (a) stop if a part gets hot (b) open a phone charger (c) build with an adult near (d) fly kites in open fields
25. 25.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
26. 26.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
27. 27.🔍 Which is the odd one out? (a) take cells out after use (b) use a cable with cuts (c) climb an electric pole (d) fly a kite near wires
28. 28.🔍 Which is the odd one out? (a) touch a fallen wire (b) use small battery cells (c) keep drinks far away (d) dry your hands first
29. 29.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a small battery pack (c) a mains extension board (d) a wall socket
30. 30.True or false: to stay away from pylons is safe. (a) True (b) False
31. 31.True or false: to use a cable with cuts is not safe. (a) True (b) False
32. 32.Which of these is not safe? (a) touch a fallen wire (b) build with an adult near (c) keep drinks far away (d) use small battery cells
33. 33.True or false: to fly a kite near wires is not safe. (a) False (b) True
34. 34.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
35. 35.True or false: to dry your hands first is not safe. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) keep drinks far away (b) open a phone charger (c) use a cable with cuts (d) throw cells in a fire
37. 37.🔍 Which is the odd one out? (a) keep drinks far away (b) take cells out after use (c) use a cable with cuts (d) build with an adult near
38. 38.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
39. 39.Which of these is safe? (a) dry your hands first (b) use a cable with cuts (c) open a phone charger (d) fly a kite near wires
40. 40.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe

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