Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 239 · 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.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a fuse or MCB (b) a plug top (c) a long wire (d) a bulb
2. 2.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
3. 3.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) a parallel circuit (c) an open circuit (d) a safe circuit
4. 4.True or false: to open a phone charger is not safe. (a) False (b) True
5. 5.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
6. 6.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
7. 7.⚠️ 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
8. 8.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) shout for an adult (c) wait and watch (d) pour water on them
9. 9.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
10. 10.True or false: to touch a switch when wet is safe. (a) True (b) False
11. 11.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
12. 12.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
13. 13.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) climb an electric pole (d) build with an adult near
14. 14.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
15. 15.Which of these is safe? (a) fly a kite near wires (b) take cells out after use (c) use a cable with cuts (d) climb an electric pole
16. 16.True or false: to stay away from pylons is safe. (a) False (b) True
17. 17.True or false: to use a cable with cuts is not safe. (a) False (b) True
18. 18.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
19. 19.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
20. 20.⚠️ Which power source should children use for electronics projects? (a) a mains extension board (b) a small battery pack (c) an inverter socket (d) a wall socket
21. 21.🔍 Which is the odd one out? (a) take cells out after use (b) build with an adult near (c) dry your hands first (d) touch a fallen wire
22. 22.Which of these is not safe? (a) use small battery cells (b) take cells out after use (c) open a phone charger (d) build with an adult near
23. 23.🔍 Which is the odd one out? (a) stop if a part gets hot (b) fly kites in open fields (c) climb an electric pole (d) use small battery cells
24. 24.🔍 Which is the odd one out? (a) throw cells in a fire (b) touch a switch when wet (c) poke things in a socket (d) take cells out after use
25. 25.Which of these is not safe? (a) build with an adult near (b) take cells out after use (c) climb an electric pole (d) stop if a part gets hot
26. 26.Which of these is not safe? (a) fly kites in open fields (b) fly a kite near wires (c) take cells out after use (d) stay away from pylons
27. 27.🔍 Which is the odd one out? (a) open a phone charger (b) fly a kite near wires (c) build with an adult near (d) touch a switch when wet
28. 28.🔍 Which is the odd one out? (a) fly kites in open fields (b) use a cable with cuts (c) stop if a part gets hot (d) dry your hands first
29. 29.True or false: to fly a kite near wires is safe. (a) False (b) True
30. 30.True or false: to use small battery cells is not safe. (a) True (b) False
31. 31.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
32. 32.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) use a cable with cuts (d) take cells out after use
33. 33.True or false: to keep drinks far away is not safe. (a) False (b) True
34. 34.True or false: to take cells out after use is safe. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) take cells out after use (b) poke things in a socket (c) stop if a part gets hot (d) dry your hands first
36. 36.Which of these is safe? (a) use mains for a project (b) touch a switch when wet (c) dry your hands first (d) open a phone charger
37. 37.Which of these is safe? (a) stop if a part gets hot (b) poke things in a socket (c) use a cable with cuts (d) climb an electric pole
38. 38.🔍 Which is the odd one out? (a) stay away from pylons (b) open a phone charger (c) take cells out after use (d) keep drinks far away
39. 39.Which of these is not safe? (a) take cells out after use (b) stay away from pylons (c) touch a switch when wet (d) keep drinks far away
40. 40.🔍 Which is the odd one out? (a) fly a kite near wires (b) build with an adult near (c) dry your hands first (d) use small battery cells

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