Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 92 · 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 of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi weather station
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain table fan
7. 7.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
9. 9.🔢 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
10. 10.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a paper calendar (d) a smart energy meter
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a battery torch
14. 14.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
15. 15.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a battery torch (d) a plain table fan
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
17. 17.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
18. 18.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
19. 19.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
23. 23.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
24. 24.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
27. 27.🌐 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
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
30. 30.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
34. 34.What does the sensor do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
35. 35.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
36. 36.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?

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