Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 504 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
4. 4.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
5. 5.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a plain table fan
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
7. 7.🔢 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
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
9. 9.What does the microcontroller do? (a) carries the data (b) stores data online (c) shows data to you (d) reads values, decides
10. 10.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a battery torch (d) a plain table fan
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
17. 17.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a smart energy meter
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
23. 23.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi doorbell camera
24. 24.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) microcontroller (d) phone app
25. 25.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a fitness band with app (d) a smart energy meter
26. 26.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a battery torch (d) an app-controlled bulb
27. 27.What does the cloud server do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
28. 28.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
33. 33.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) sensor (d) cloud server
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
35. 35.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
40. 40.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller

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