Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 81 · 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.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
2. 2.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) microcontroller (d) Wi-Fi
3. 3.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
5. 5.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
6. 6.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
8. 8.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
12. 12.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
13. 13.What does the phone app do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a fitness band with app
15. 15.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a pencil sharpener
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
18. 18.What does the Wi-Fi link do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
24. 24.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
25. 25.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) a fitness band with app
26. 26.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
29. 29.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) Wi-Fi (d) microcontroller
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
32. 32.🔢 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
33. 33.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) shows data to you
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi weather station
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) actuator (d) sensor
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?

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