Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 830 · 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.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a plain wall switch (d) a battery torch
2. 2.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
5. 5.What does the cloud server do? (a) shows data to you (b) measures the real world (c) carries the data (d) stores data online
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
10. 10.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a paper calendar (d) a plain table fan
11. 11.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) microcontroller (d) sensor
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
13. 13.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
21. 21.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
22. 22.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) microcontroller (d) actuator
23. 23.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
24. 24.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
31. 31.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
33. 33.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi weather station
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
39. 39.What does the sensor do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
40. 40.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) actuator

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