Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 636 · 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) reads values, decides (c) carries the data (d) shows data to you
2. 2.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a wind-up clock (d) a plain table fan
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi doorbell camera
4. 4.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) stores data online
5. 5.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
6. 6.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
7. 7.🔢 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
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a pencil sharpener
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
11. 11.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain wall switch
12. 12.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
17. 17.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
18. 18.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
19. 19.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi weather station (d) a wind-up clock
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
21. 21.What does the sensor do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) carries the data
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
23. 23.What does the cloud server do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
28. 28.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
31. 31.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
33. 33.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain table fan
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
36. 36.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi smart plug
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a battery torch
39. 39.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?

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