Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 729 · 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.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) an open circuit (c) a parallel circuit (d) a short circuit
2. 2.⚠️ Is it safe to throw cells in a fire? (a) not safe (b) safe
3. 3.True or false: to open a phone charger is safe. (a) False (b) True
4. 4.⚠️ Which power source should children use for electronics projects? (a) a wall socket (b) a small battery pack (c) a mains extension board (d) an inverter socket
5. 5.Which of these is safe? (a) touch a fallen wire (b) open a phone charger (c) poke things in a socket (d) take cells out after use
6. 6.⚠️ Who should be with you when you build a circuit? (a) a younger child (b) a stranger online (c) nobody (d) a trusted adult
7. 7.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe
8. 8.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
9. 9.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
10. 10.🔍 Which is the odd one out? (a) take cells out after use (b) keep drinks far away (c) poke things in a socket (d) build with an adult near
11. 11.Which of these is safe? (a) use small battery cells (b) climb an electric pole (c) use mains for a project (d) touch a switch when wet
12. 12.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
13. 13.🔍 Which is the odd one out? (a) touch a switch when wet (b) take cells out after use (c) dry your hands first (d) keep drinks far away
14. 14.Which of these is safe? (a) use mains for a project (b) fly a kite near wires (c) stay away from pylons (d) touch a fallen wire
15. 15.Which of these is safe? (a) build with an adult near (b) fly a kite near wires (c) poke things in a socket (d) open a phone charger
16. 16.🔍 Which is the odd one out? (a) throw cells in a fire (b) keep drinks far away (c) stay away from pylons (d) build with an adult near
17. 17.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
18. 18.🔍 Which is the odd one out? (a) stop if a part gets hot (b) dry your hands first (c) open a phone charger (d) keep drinks far away
19. 19.⚠️ Is it safe to open a phone charger? (a) not safe (b) safe
20. 20.🔍 Which is the odd one out? (a) climb an electric pole (b) stop if a part gets hot (c) poke things in a socket (d) throw cells in a fire
21. 21.Which of these is not safe? (a) dry your hands first (b) keep drinks far away (c) stop if a part gets hot (d) use mains for a project
22. 22.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a fuse or MCB (c) a plug top (d) a long wire
23. 23.⚠️ Is it safe to build with an adult near? (a) safe (b) not safe
24. 24.Which of these is safe? (a) use mains for a project (b) fly a kite near wires (c) touch a switch when wet (d) dry your hands first
25. 25.True or false: to throw cells in a fire is not safe. (a) False (b) True
26. 26.Which of these is not safe? (a) fly a kite near wires (b) take cells out after use (c) stay away from pylons (d) fly kites in open fields
27. 27.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
28. 28.True or false: to poke things in a socket is not safe. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) use mains for a project (b) fly kites in open fields (c) open a phone charger (d) fly a kite near wires
30. 30.⚠️ Is it safe to keep drinks far away? (a) not safe (b) safe
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) stop if a part gets hot (b) dry your hands first (c) keep drinks far away (d) open a phone charger
33. 33.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
34. 34.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
35. 35.Which of these is not safe? (a) take cells out after use (b) dry your hands first (c) throw cells in a fire (d) stop if a part gets hot
36. 36.🔍 Which is the odd one out? (a) climb an electric pole (b) touch a switch when wet (c) use mains for a project (d) use small battery cells
37. 37.True or false: to throw cells in a fire is safe. (a) False (b) True
38. 38.True or false: to open a phone charger is not safe. (a) True (b) False
39. 39.True or false: to climb an electric pole is not safe. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) open a phone charger (b) build with an adult near (c) climb an electric pole (d) use mains for a project

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