Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 331 · 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 weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a wind-up clock (d) a plain wall switch
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
5. 5.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
9. 9.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
11. 11.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a battery torch (d) a pencil sharpener
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
13. 13.What does the phone app do? (a) acts on a command (b) shows data to you (c) stores data online (d) measures the real world
14. 14.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain table fan (d) a pencil sharpener
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi smart plug
16. 16.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) phone app (d) microcontroller
17. 17.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
19. 19.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a plain table fan
21. 21.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) a fitness band with app
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
23. 23.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) stores data online (d) measures the real world
24. 24.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
25. 25.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) carries the data (d) reads values, decides
26. 26.🔢 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
27. 27.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
29. 29.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) Wi-Fi (d) actuator
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
32. 32.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
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 app shows it (d) the sensor measures
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
35. 35.What does the sensor do? (a) measures the real world (b) shows data to you (c) carries the data (d) acts on a command
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
37. 37.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a paper calendar
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
40. 40.🔢 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

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