Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 803 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
3. 3.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
5. 5.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
6. 6.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) microcontroller (d) phone app
7. 7.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi doorbell camera
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
9. 9.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
11. 11.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
13. 13.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi weather station (d) a smart energy meter
14. 14.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) cloud server (d) actuator
15. 15.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
17. 17.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) sensor (c) actuator (d) microcontroller
18. 18.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
19. 19.What does the sensor do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
20. 20.🌐 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
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
23. 23.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a plain wall switch (d) a battery torch
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
27. 27.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
28. 28.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
31. 31.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
34. 34.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a smart energy meter (d) a fitness band with app
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
36. 36.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) sensor (d) Wi-Fi
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it

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