Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 434 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
2. 2.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi doorbell camera
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
4. 4.🔢 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 sensor measures (c) the board reads it (d) the app shows it
5. 5.🏠 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
6. 6.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
8. 8.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
9. 9.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a smart energy meter
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a paper calendar
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
13. 13.Which of these is not an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a fitness band with app
14. 14.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) phone app (d) sensor
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
16. 16.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a pencil sharpener (d) a battery torch
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 actuator do? (a) stores data online (b) reads values, decides (c) acts on a command (d) shows data to you
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a smart energy meter (d) a battery torch
20. 20.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
24. 24.What does the microcontroller do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
25. 25.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) sensor (d) actuator
26. 26.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
28. 28.What does the sensor do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
31. 31.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) cloud server (d) microcontroller
32. 32.What does the cloud server do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
39. 39.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) cloud server (d) sensor
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?

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