Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 743 · 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 soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
2. 2.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) carries the data (d) stores data online
3. 3.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
4. 4.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
5. 5.What does the actuator do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
6. 6.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
7. 7.🔢 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 board reads it (d) the app shows it
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain wall switch (d) an app-controlled bulb
9. 9.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
10. 10.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a smart energy meter (d) an app-controlled bulb
11. 11.What does the phone app do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
12. 12.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
14. 14.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) cloud server (d) phone app
15. 15.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a smart energy meter (d) a fitness band with app
16. 16.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi doorbell camera
19. 19.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a fitness band with app (d) a smart energy meter
21. 21.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) an app-controlled bulb
22. 22.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
25. 25.What does the sensor do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you
26. 26.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
29. 29.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
32. 32.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi weather station
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?

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