Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 257 · 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.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) phone app (d) Wi-Fi
2. 2.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a fitness band with app
3. 3.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
4. 4.What does the actuator do? (a) acts on a command (b) stores data online (c) measures the real world (d) shows data to you
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
6. 6.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
7. 7.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
10. 10.What does the phone app do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
11. 11.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi doorbell camera
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
14. 14.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) sensor
15. 15.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi smart plug (d) a battery torch
18. 18.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
21. 21.What does the microcontroller do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
22. 22.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
25. 25.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
26. 26.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a wind-up clock (d) an app-controlled bulb
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
35. 35.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a smart energy meter
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it

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