Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 882 · 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 30 seconds. How many readings does it send in 8 minutes?
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a battery torch (d) a plain table fan
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi doorbell camera
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
11. 11.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
17. 17.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
20. 20.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
23. 23.What does the sensor do? (a) stores data online (b) shows data to you (c) carries the data (d) measures the real world
24. 24.What does the cloud server do? (a) shows data to you (b) acts on a command (c) measures the real world (d) stores data online
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
27. 27.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
28. 28.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) microcontroller
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
31. 31.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a battery torch (d) a plain wall switch
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
35. 35.🌐 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
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
37. 37.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) Wi-Fi (d) cloud server
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
39. 39.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it

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