Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 292 · 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 is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
3. 3.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
5. 5.What does the sensor do? (a) carries the data (b) stores data online (c) acts on a command (d) measures the real world
6. 6.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔢 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
9. 9.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
12. 12.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a pencil sharpener (d) a plain wall switch
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a pencil sharpener
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
16. 16.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) phone app
17. 17.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi doorbell camera
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
22. 22.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a fitness band with app (d) a plain wall switch
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
29. 29.What does the phone app do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
32. 32.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a pencil sharpener
33. 33.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
34. 34.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) an app-controlled bulb
35. 35.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) Wi-Fi (d) sensor
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a wind-up clock
37. 37.What does the microcontroller do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
40. 40.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a pencil sharpener

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