Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 536 · 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 plain table fan (b) a plain wall switch (c) a smart energy meter (d) a paper calendar
2. 2.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
5. 5.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
7. 7.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain table fan (d) a wind-up clock
9. 9.What does the sensor do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
11. 11.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) an app-controlled bulb
13. 13.🔢 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
14. 14.What does the actuator do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
15. 15.🌐 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
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
18. 18.🔢 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 board reads it (c) the app shows it (d) the sensor measures
19. 19.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
21. 21.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) microcontroller
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi weather station (d) a fitness band with app
23. 23.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
25. 25.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
26. 26.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
29. 29.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a Wi-Fi smart plug
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
33. 33.What does the microcontroller do? (a) measures the real world (b) stores data online (c) shows data to you (d) reads values, decides
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
35. 35.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a smart energy meter (d) a fitness band with app
37. 37.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a plain table fan (d) a plain wall switch
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a wind-up clock
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?

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