Electronics Worksheet: What Is IoT

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

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