Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 413 · 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 weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
2. 2.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
3. 3.What does the actuator do? (a) acts on a command (b) carries the data (c) shows data to you (d) measures the real world
4. 4.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a wind-up clock (d) a pencil sharpener
7. 7.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) phone app (d) Wi-Fi
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi doorbell camera
9. 9.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) microcontroller (d) sensor
10. 10.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
11. 11.🔢 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) the app shows it (d) it is sent by Wi-Fi
12. 12.What does the microcontroller do? (a) stores data online (b) carries the data (c) reads values, decides (d) acts on a command
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a battery torch (d) a Wi-Fi weather station
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
18. 18.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
19. 19.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi smart plug (d) a pencil sharpener
21. 21.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) an app-controlled bulb
22. 22.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) actuator (d) sensor
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
24. 24.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a plain table fan
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
29. 29.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
31. 31.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
33. 33.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
36. 36.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
37. 37.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi smart plug
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
40. 40.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi weather station

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