Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 812 · 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.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
3. 3.What does the microcontroller do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online
4. 4.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a paper calendar (d) a plain wall switch
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
8. 8.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) cloud server
9. 9.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
10. 10.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
13. 13.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
15. 15.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi weather station (d) a paper calendar
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
19. 19.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
23. 23.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
24. 24.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) cloud server (d) sensor
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
26. 26.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
27. 27.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
28. 28.What does the cloud server do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
29. 29.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) actuator (d) sensor
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi weather station
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
33. 33.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
36. 36.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi doorbell camera
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi doorbell camera
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it

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