Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 778 · 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.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
2. 2.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a paper calendar
4. 4.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
5. 5.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) carries the data (d) reads values, decides
6. 6.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) Wi-Fi (d) cloud server
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
10. 10.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain table fan (d) a plain wall switch
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
12. 12.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) microcontroller (d) sensor
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a smart energy meter
16. 16.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
20. 20.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
21. 21.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
22. 22.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) phone app (d) microcontroller
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
26. 26.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
29. 29.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) a fitness band with app
39. 39.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?

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