Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 42 · 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 long wire (b) a plug top (c) a bulb (d) a fuse or MCB
2. 2.Which of these is not safe? (a) take cells out after use (b) keep drinks far away (c) build with an adult near (d) throw cells in a fire
3. 3.True or false: to keep drinks far away is safe. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) fly kites in open fields (b) use mains for a project (c) take cells out after use (d) use small battery cells
5. 5.True or false: to throw cells in a fire is safe. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) touch a fallen wire (b) use mains for a project (c) stay away from pylons (d) climb an electric pole
7. 7.🔍 Which is the odd one out? (a) stay away from pylons (b) stop if a part gets hot (c) poke things in a socket (d) take cells out after use
8. 8.Which of these is safe? (a) fly a kite near wires (b) throw cells in a fire (c) use a cable with cuts (d) stay away from pylons
9. 9.🔍 Which is the odd one out? (a) keep drinks far away (b) use small battery cells (c) open a phone charger (d) stay away from pylons
10. 10.Which of these is not safe? (a) stop if a part gets hot (b) stay away from pylons (c) poke things in a socket (d) fly kites in open fields
11. 11.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) take cells out after use (d) touch a switch when wet
12. 12.Which of these is safe? (a) poke things in a socket (b) open a phone charger (c) use mains for a project (d) take cells out after use
13. 13.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
14. 14.True or false: to throw cells in a fire is not safe. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) climb an electric pole (b) fly kites in open fields (c) build with an adult near (d) use small battery cells
16. 16.🔍 Which is the odd one out? (a) take cells out after use (b) build with an adult near (c) touch a switch when wet (d) use small battery cells
17. 17.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) nobody (c) a stranger online (d) a trusted adult
18. 18.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
19. 19.🔍 Which is the odd one out? (a) stop if a part gets hot (b) use a cable with cuts (c) touch a switch when wet (d) use mains for a project
20. 20.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
21. 21.⚠️ 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) pour water on them (d) wait and watch
22. 22.Which of these is not safe? (a) use small battery cells (b) keep drinks far away (c) take cells out after use (d) open a phone charger
23. 23.Which of these is safe? (a) climb an electric pole (b) use small battery cells (c) throw cells in a fire (d) use a cable with cuts
24. 24.True or false: to build with an adult near is not safe. (a) False (b) True
25. 25.True or false: to dry your hands first is not safe. (a) False (b) True
26. 26.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
27. 27.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
28. 28.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
29. 29.🔍 Which is the odd one out? (a) stay away from pylons (b) dry your hands first (c) fly kites in open fields (d) throw cells in a fire
30. 30.⚠️ Is it safe to touch a switch when wet? (a) safe (b) not safe
31. 31.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
32. 32.True or false: to stop if a part gets hot is safe. (a) True (b) False
33. 33.Which of these is safe? (a) open a phone charger (b) fly a kite near wires (c) fly kites in open fields (d) use mains for a project
34. 34.Which of these is safe? (a) poke things in a socket (b) build with an adult near (c) touch a fallen wire (d) open a phone charger
35. 35.⚠️ 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 parallel circuit (d) a short circuit
36. 36.Which of these is safe? (a) touch a switch when wet (b) stop if a part gets hot (c) use a cable with cuts (d) poke things in a socket
37. 37.Which of these is not safe? (a) stop if a part gets hot (b) use a cable with cuts (c) dry your hands first (d) use small battery cells
38. 38.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a mains extension board (c) a small battery pack (d) an inverter socket
39. 39.True or false: to keep drinks far away is not safe. (a) False (b) True
40. 40.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe

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