Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 463 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
2. 2.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
4. 4.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
7. 7.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain wall switch
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
9. 9.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain table fan
10. 10.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a plain wall switch
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a battery torch
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock
18. 18.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a battery torch
19. 19.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
21. 21.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
26. 26.🌐 In an IoT system, which part stores data online? (a) phone app (b) sensor (c) cloud server (d) actuator
27. 27.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi weather station
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi weather station (d) a wind-up clock
33. 33.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
37. 37.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi doorbell camera
40. 40.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera

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