Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 19 · 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 is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
3. 3.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) carries the data (d) shows data to you
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a Wi-Fi weather station (d) a pencil sharpener
6. 6.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
7. 7.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) an app-controlled bulb (d) a plain wall switch
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
9. 9.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a pencil sharpener
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a pencil sharpener (d) a smart energy meter
14. 14.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
15. 15.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
17. 17.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) an app-controlled bulb
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
20. 20.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a battery torch
21. 21.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) cloud server (d) sensor
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the cloud stores it
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) actuator (d) sensor
25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
28. 28.What does the cloud server do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
29. 29.🌐 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
30. 30.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) sensor (d) cloud server
31. 31.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
32. 32.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
33. 33.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a battery torch (d) a Wi-Fi weather station
34. 34.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi smart plug
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?

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