Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 814 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) the cloud stores it
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
3. 3.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
4. 4.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
5. 5.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
10. 10.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
12. 12.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a wind-up clock (d) a plain table fan
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
15. 15.What does the sensor do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
16. 16.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a smart energy meter
18. 18.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a battery torch
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
21. 21.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) actuator (d) cloud server
23. 23.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a battery torch (d) a Wi-Fi doorbell camera
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
27. 27.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
30. 30.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) cloud server (d) phone app
31. 31.🌐 Is a pencil sharpener 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 7 minutes?
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
35. 35.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
36. 36.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain table fan (d) a plain wall switch
37. 37.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
40. 40.What does the actuator do? (a) shows data to you (b) measures the real world (c) acts on a command (d) carries the data

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