Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 488 · 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.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a paper calendar
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
3. 3.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
7. 7.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a smart energy meter
8. 8.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi doorbell camera
9. 9.What does the phone app do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
12. 12.What does the actuator do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain table fan (d) a plain wall switch
14. 14.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) a fitness band with app
23. 23.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
24. 24.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
27. 27.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a fitness band with app (d) an app-controlled bulb
28. 28.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
29. 29.🌐 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
30. 30.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
31. 31.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
34. 34.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) sensor (d) actuator
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
36. 36.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi weather station
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a smart energy meter (d) a plain table fan
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) microcontroller (d) sensor
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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