Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 151 · 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 soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
2. 2.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
6. 6.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) phone app (d) sensor
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi weather station (d) an app-controlled bulb
11. 11.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
12. 12.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
15. 15.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
18. 18.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a plain table fan (d) a battery torch
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
22. 22.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi smart plug (d) a smart energy meter
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
24. 24.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a wind-up clock (d) a battery torch
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
26. 26.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
27. 27.What does the sensor do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
30. 30.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
31. 31.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
32. 32.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a paper calendar
33. 33.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a pencil sharpener
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
37. 37.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
38. 38.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?

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