Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 867 · 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.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
4. 4.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
9. 9.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) reads values, decides (d) acts on a command
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
13. 13.What does the phone app do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) shows data to you
14. 14.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
15. 15.🔢 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
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
21. 21.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a smart energy meter (d) a battery torch
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
23. 23.What does the sensor do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
24. 24.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
26. 26.What does the cloud server do? (a) stores data online (b) measures the real world (c) acts on a command (d) carries the data
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
29. 29.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
32. 32.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
37. 37.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) cloud server
38. 38.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain table fan
39. 39.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
40. 40.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a plain table fan (d) a paper calendar

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