Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 245 · 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 weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
7. 7.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) Wi-Fi (d) microcontroller
8. 8.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a fitness band with app (d) a plain table fan
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
12. 12.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) actuator (d) sensor
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a battery torch
14. 14.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) an app-controlled bulb
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
17. 17.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
18. 18.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) carries the data
19. 19.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
21. 21.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a wind-up clock (d) a plain wall switch
22. 22.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
26. 26.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
30. 30.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
33. 33.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
38. 38.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a smart energy meter
39. 39.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?

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