Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 781 · 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 is the odd one out? (a) a wind-up clock (b) a plain table fan (c) an app-controlled bulb (d) a paper calendar
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
3. 3.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock
4. 4.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
6. 6.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it
8. 8.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
11. 11.What does the phone app do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
12. 12.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
13. 13.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a plain wall switch (d) a battery torch
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi weather station (d) a smart energy meter
16. 16.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
18. 18.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a fitness band with app
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a battery torch (d) an app-controlled bulb
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
23. 23.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
26. 26.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
27. 27.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a plain table fan (d) a plain wall switch
29. 29.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
30. 30.What does the actuator do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
31. 31.🔢 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
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a smart energy meter
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
35. 35.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
36. 36.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
38. 38.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) actuator (d) sensor
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
40. 40.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) phone app (d) cloud server

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