Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 165 · 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.What does the actuator do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
3. 3.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
5. 5.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
7. 7.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) sensor (d) microcontroller
8. 8.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
10. 10.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a pencil sharpener
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
15. 15.What does the cloud server do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
17. 17.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
21. 21.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
23. 23.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a wind-up clock (d) a pencil sharpener
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a wind-up clock
25. 25.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi doorbell camera
26. 26.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
28. 28.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.What does the phone app do? (a) acts on a command (b) carries the data (c) shows data to you (d) stores data online
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
34. 34.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a plain wall switch
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
37. 37.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
39. 39.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
40. 40.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor

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