Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 859 · 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 build with an adult near? (a) not safe (b) safe
2. 2.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a trusted adult (c) a younger child (d) a stranger online
3. 3.🔍 Which is the odd one out? (a) stop if a part gets hot (b) touch a switch when wet (c) throw cells in a fire (d) touch a fallen wire
4. 4.True or false: to use small battery cells is not safe. (a) False (b) True
5. 5.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
6. 6.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) wait and watch (b) pull them by the hand (c) shout for an adult (d) pour water on them
7. 7.True or false: to dry your hands first is not safe. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) stay away from pylons (b) fly a kite near wires (c) fly kites in open fields (d) use small battery cells
9. 9.🔍 Which is the odd one out? (a) build with an adult near (b) use a cable with cuts (c) poke things in a socket (d) touch a fallen wire
10. 10.True or false: to touch a switch when wet is not safe. (a) False (b) True
11. 11.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
12. 12.⚠️ Is it safe to use mains for a project? (a) not safe (b) safe
13. 13.🔍 Which is the odd one out? (a) use a cable with cuts (b) dry your hands first (c) open a phone charger (d) throw cells in a fire
14. 14.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
15. 15.Which of these is not safe? (a) climb an electric pole (b) use small battery cells (c) dry your hands first (d) keep drinks far away
16. 16.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
17. 17.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
18. 18.Which of these is safe? (a) touch a switch when wet (b) open a phone charger (c) touch a fallen wire (d) keep drinks far away
19. 19.Which of these is safe? (a) use mains for a project (b) throw cells in a fire (c) build with an adult near (d) use a cable with cuts
20. 20.True or false: to take cells out after use is not safe. (a) True (b) False
21. 21.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 1.5 V (c) 12 V (d) 9 V
22. 22.True or false: to keep drinks far away is safe. (a) False (b) True
23. 23.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
24. 24.🔍 Which is the odd one out? (a) build with an adult near (b) poke things in a socket (c) dry your hands first (d) stay away from pylons
25. 25.🔍 Which is the odd one out? (a) touch a fallen wire (b) stop if a part gets hot (c) use small battery cells (d) take cells out after use
26. 26.True or false: to open a phone charger is not safe. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) use mains for a project (b) touch a switch when wet (c) fly a kite near wires (d) stay away from pylons
28. 28.🔍 Which is the odd one out? (a) climb an electric pole (b) touch a fallen wire (c) use mains for a project (d) keep drinks far away
29. 29.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a fuse or MCB (c) a bulb (d) a long wire
30. 30.🔍 Which is the odd one out? (a) dry your hands first (b) keep drinks far away (c) touch a switch when wet (d) stay away from pylons
31. 31.True or false: to keep drinks far away is not safe. (a) False (b) True
32. 32.Which of these is not safe? (a) throw cells in a fire (b) dry your hands first (c) keep drinks far away (d) build with an adult near
33. 33.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a wall socket (c) an inverter socket (d) a small battery pack
34. 34.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it spoils the paint (d) it is just untidy
35. 35.Which of these is safe? (a) touch a fallen wire (b) take cells out after use (c) throw cells in a fire (d) open a phone charger
36. 36.True or false: to stop if a part gets hot is not safe. (a) False (b) True
37. 37.Which of these is safe? (a) climb an electric pole (b) use mains for a project (c) touch a switch when wet (d) fly kites in open fields
38. 38.Which of these is not safe? (a) take cells out after use (b) dry your hands first (c) build with an adult near (d) open a phone charger
39. 39.True or false: to throw cells in a fire is safe. (a) True (b) False
40. 40.True or false: to fly kites in open fields is safe. (a) True (b) False

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