Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 839 · 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 stores data online? (a) actuator (b) microcontroller (c) phone app (d) cloud server
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
4. 4.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) microcontroller (d) sensor
5. 5.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
6. 6.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
10. 10.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) sensor (d) Wi-Fi
11. 11.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a pencil sharpener (d) an app-controlled bulb
12. 12.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you
13. 13.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
17. 17.🔢 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
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a paper calendar (d) an app-controlled bulb
19. 19.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) carries the data
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
23. 23.🔢 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 board reads it (d) the sensor measures
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
26. 26.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) cloud server (d) sensor
27. 27.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
32. 32.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a battery torch (d) a plain wall switch
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
34. 34.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
37. 37.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a battery torch
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
40. 40.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device

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