Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 784 · 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.⚠️ Why must we never touch switches with wet hands? (a) water makes it cold (b) water carries current (c) it is just untidy (d) it spoils the paint
2. 2.🔍 Which is the odd one out? (a) dry your hands first (b) touch a fallen wire (c) touch a switch when wet (d) poke things in a socket
3. 3.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a long wire (b) a fuse or MCB (c) a plug top (d) a bulb
4. 4.Which of these is not safe? (a) fly kites in open fields (b) poke things in a socket (c) dry your hands first (d) build with an adult near
5. 5.Which of these is not safe? (a) dry your hands first (b) build with an adult near (c) keep drinks far away (d) use mains for a project
6. 6.🔍 Which is the odd one out? (a) stay away from pylons (b) fly a kite near wires (c) use small battery cells (d) build with an adult near
7. 7.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) use mains for a project (d) fly kites in open fields
8. 8.True or false: to stay away from pylons is safe. (a) True (b) False
9. 9.True or false: to fly kites in open fields is safe. (a) False (b) True
10. 10.True or false: to touch a switch when wet is not safe. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) use mains for a project (b) touch a switch when wet (c) touch a fallen wire (d) use small battery cells
12. 12.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
13. 13.Which of these is safe? (a) use mains for a project (b) poke things in a socket (c) stop if a part gets hot (d) climb an electric pole
14. 14.Which of these is safe? (a) dry your hands first (b) use mains for a project (c) touch a switch when wet (d) use a cable with cuts
15. 15.🔍 Which is the odd one out? (a) fly kites in open fields (b) take cells out after use (c) poke things in a socket (d) build with an adult near
16. 16.Which of these is safe? (a) fly a kite near wires (b) throw cells in a fire (c) use small battery cells (d) touch a fallen wire
17. 17.True or false: to build with an adult near is not safe. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) build with an adult near (b) keep drinks far away (c) dry your hands first (d) touch a switch when wet
19. 19.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
20. 20.🔍 Which is the odd one out? (a) stay away from pylons (b) take cells out after use (c) throw cells in a fire (d) use small battery cells
21. 21.True or false: to take cells out after use is not safe. (a) False (b) True
22. 22.⚠️ Is it safe to fly a kite near wires? (a) not safe (b) safe
23. 23.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
24. 24.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) nobody (d) a trusted adult
25. 25.True or false: to open a phone charger is safe. (a) True (b) False
26. 26.⚠️ 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
27. 27.⚠️ 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
28. 28.True or false: to throw cells in a fire is safe. (a) False (b) True
29. 29.True or false: to use a cable with cuts is safe. (a) False (b) True
30. 30.Which of these is safe? (a) open a phone charger (b) fly a kite near wires (c) poke things in a socket (d) fly kites in open fields
31. 31.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
32. 32.Which of these is not safe? (a) use small battery cells (b) stop if a part gets hot (c) throw cells in a fire (d) keep drinks far away
33. 33.True or false: to touch a fallen wire is safe. (a) False (b) True
34. 34.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
35. 35.🔍 Which is the odd one out? (a) fly a kite near wires (b) poke things in a socket (c) take cells out after use (d) touch a switch when wet
36. 36.True or false: to use mains for a project is safe. (a) True (b) False
37. 37.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
38. 38.⚠️ Is it safe to poke things in a socket? (a) not safe (b) safe
39. 39.True or false: to use small battery cells is safe. (a) True (b) False
40. 40.True or false: to poke things in a socket is safe. (a) True (b) False

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