Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 637 · 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 phone app do? (a) carries the data (b) measures the real world (c) shows data to you (d) stores data online
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
4. 4.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) actuator (d) sensor
5. 5.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
14. 14.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) Wi-Fi (d) cloud server
15. 15.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
18. 18.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
19. 19.What does the Wi-Fi link do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
21. 21.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi smart plug
22. 22.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
24. 24.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
27. 27.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a smart energy meter
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a smart energy meter (d) a pencil sharpener
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔢 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
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
33. 33.🔢 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
34. 34.What does the sensor do? (a) carries the data (b) measures the real world (c) acts on a command (d) shows data to you
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a pencil sharpener
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a fitness band with app (d) a battery torch
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?

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