Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 231 · 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.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a pencil sharpener
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
4. 4.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
7. 7.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
10. 10.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a fitness band with app
12. 12.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a pencil sharpener (d) a plain wall switch
13. 13.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the sensor measures
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
18. 18.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a paper calendar
19. 19.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
22. 22.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) cloud server (d) Wi-Fi
23. 23.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) cloud server (d) microcontroller
24. 24.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
26. 26.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a plain wall switch (d) a pencil sharpener
27. 27.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) reads values, decides (d) measures the real world
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a wind-up clock (d) a plain table fan
29. 29.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
34. 34.What does the actuator do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
36. 36.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
37. 37.What does the cloud server do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
38. 38.🔍 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
39. 39.What does the phone app do? (a) measures the real world (b) stores data online (c) acts on a command (d) shows data to you
40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it

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