Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 539 · 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.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
5. 5.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
6. 6.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.What does the phone app do? (a) stores data online (b) shows data to you (c) carries the data (d) reads values, decides
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
10. 10.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
13. 13.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
15. 15.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
16. 16.Which of these is not an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a smart energy meter (d) an app-controlled bulb
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi smart plug (d) a plain wall switch
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
24. 24.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a battery torch (d) a wind-up clock
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a fitness band with app
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
29. 29.What does the actuator do? (a) reads values, decides (b) stores data online (c) carries the data (d) acts on a command
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a pencil sharpener
31. 31.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a battery torch
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) microcontroller (d) cloud server
34. 34.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
35. 35.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
36. 36.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) stores data online (d) measures the real world
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) a fitness band with app
38. 38.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?

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