Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 843 · 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 shouting (b) over Wi-Fi (c) by post (d) through a candle
2. 2.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a paper calendar
3. 3.What does the phone app do? (a) carries the data (b) measures the real world (c) shows data to you (d) stores data online
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
5. 5.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a wind-up clock (d) a plain table fan
7. 7.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a plain wall switch (d) a fitness band with app
8. 8.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi weather station
9. 9.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
11. 11.🔢 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 app shows it (c) the board reads it (d) the sensor measures
12. 12.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) sensor
13. 13.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
15. 15.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a paper calendar
19. 19.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a paper calendar
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
24. 24.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
26. 26.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
29. 29.🌐 A soil sensor sends a reading to an app every 10 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 app shows it (d) the board reads it
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a wind-up clock (d) a pencil sharpener
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
36. 36.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
38. 38.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?

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