Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 671 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a battery torch
3. 3.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
4. 4.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) an app-controlled bulb
5. 5.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) phone app
6. 6.What does the actuator do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
7. 7.What does the sensor do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) measures the real world
8. 8.What does the cloud server do? (a) acts on a command (b) stores data online (c) shows data to you (d) measures the real world
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
12. 12.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
15. 15.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) an app-controlled bulb
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
17. 17.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
21. 21.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
25. 25.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
26. 26.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) phone app
27. 27.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) Wi-Fi
28. 28.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a wind-up clock
31. 31.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
33. 33.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) an app-controlled bulb
35. 35.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a pencil sharpener
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
39. 39.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
40. 40.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) phone app (d) actuator

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