Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 561 · 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 soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
2. 2.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a smart energy meter (d) a paper calendar
3. 3.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
5. 5.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
7. 7.What does the actuator do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
9. 9.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a battery torch (d) a plain table fan
10. 10.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a wind-up clock (d) a pencil sharpener
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
17. 17.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) acts on a command
18. 18.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a fitness band with app
19. 19.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi weather station
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
22. 22.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
23. 23.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
24. 24.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi doorbell camera
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
27. 27.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
28. 28.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
29. 29.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a smart energy meter
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
31. 31.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
32. 32.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) cloud server (d) Wi-Fi
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) a paper calendar (c) an app-controlled bulb (d) a Wi-Fi weather station
34. 34.🔢 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 app shows it (d) the board reads it
35. 35.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) Wi-Fi (d) actuator
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi smart plug
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
39. 39.🔢 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 sensor measures (d) the app shows it
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?

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