Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 87 · 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 60 seconds. How many readings does it send in 1 minute?
2. 2.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a smart energy meter
3. 3.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
6. 6.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a battery torch (d) a plain wall switch
7. 7.What does the sensor do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
9. 9.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
12. 12.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
13. 13.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
15. 15.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
16. 16.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
18. 18.What does the actuator do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
20. 20.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi weather station (d) a wind-up clock
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
23. 23.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
27. 27.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
30. 30.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) carries the data (d) acts on a command
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
33. 33.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
36. 36.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi weather station (d) a battery torch
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain table fan
39. 39.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a smart energy meter

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