Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 763 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
6. 6.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a fitness band with app
7. 7.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
8. 8.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
12. 12.Which of these is not an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
13. 13.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
15. 15.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
16. 16.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi weather station
17. 17.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) actuator (d) Wi-Fi
18. 18.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
19. 19.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
21. 21.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
22. 22.What does the microcontroller do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) a Wi-Fi doorbell camera
24. 24.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) phone app (d) cloud server
25. 25.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar
26. 26.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
28. 28.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
30. 30.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
32. 32.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a pencil sharpener
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a plain table fan (d) a fitness band with app
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi weather station (d) a fitness band with app
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a plain table fan (d) a fitness band with app
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?

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