Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 851 · 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.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
2. 2.⚠️ 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
3. 3.Which of these is safe? (a) use a cable with cuts (b) throw cells in a fire (c) stay away from pylons (d) use mains for a project
4. 4.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) build with an adult near (d) open a phone charger
5. 5.⚠️ 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 short circuit (d) a parallel circuit
6. 6.True or false: to use a cable with cuts is safe. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) touch a fallen wire (b) stay away from pylons (c) stop if a part gets hot (d) fly kites in open fields
8. 8.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pour water on them (b) pull them by the hand (c) wait and watch (d) shout for an adult
9. 9.True or false: to touch a switch when wet is not safe. (a) False (b) True
10. 10.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
11. 11.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
12. 12.Which of these is not safe? (a) fly kites in open fields (b) build with an adult near (c) fly a kite near wires (d) keep drinks far away
13. 13.True or false: to fly kites in open fields is safe. (a) True (b) False
14. 14.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
15. 15.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
16. 16.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) nobody (c) a stranger online (d) a trusted adult
17. 17.True or false: to build with an adult near is safe. (a) False (b) True
18. 18.True or false: to poke things in a socket is not safe. (a) False (b) True
19. 19.Which of these is not safe? (a) use a cable with cuts (b) keep drinks far away (c) dry your hands first (d) use small battery cells
20. 20.Which of these is safe? (a) fly kites in open fields (b) fly a kite near wires (c) poke things in a socket (d) use a cable with cuts
21. 21.Which of these is not safe? (a) dry your hands first (b) take cells out after use (c) fly kites in open fields (d) open a phone charger
22. 22.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
23. 23.🔍 Which is the odd one out? (a) take cells out after use (b) keep drinks far away (c) stay away from pylons (d) fly a kite near wires
24. 24.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
25. 25.True or false: to open a phone charger is not safe. (a) True (b) False
26. 26.⚠️ 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
27. 27.🔍 Which is the odd one out? (a) climb an electric pole (b) touch a fallen wire (c) throw cells in a fire (d) dry your hands first
28. 28.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
29. 29.True or false: to use small battery cells is safe. (a) False (b) True
30. 30.⚠️ About how many volts do home sockets in India supply? (a) 12 V (b) 230 V (c) 1.5 V (d) 9 V
31. 31.Which of these is safe? (a) stop if a part gets hot (b) use mains for a project (c) poke things in a socket (d) touch a fallen wire
32. 32.🔍 Which is the odd one out? (a) throw cells in a fire (b) dry your hands first (c) use small battery cells (d) stay away from pylons
33. 33.Which of these is not safe? (a) fly kites in open fields (b) touch a switch when wet (c) dry your hands first (d) use small battery cells
34. 34.True or false: to stop if a part gets hot is safe. (a) False (b) True
35. 35.Which of these is safe? (a) touch a fallen wire (b) touch a switch when wet (c) open a phone charger (d) build with an adult near
36. 36.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
37. 37.⚠️ Why must we never touch switches with wet hands? (a) water carries current (b) water makes it cold (c) it is just untidy (d) it spoils the paint
38. 38.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
39. 39.True or false: to dry your hands first is safe. (a) True (b) False
40. 40.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe

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