Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 754 · 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 of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
4. 4.🏠 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
5. 5.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
7. 7.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a paper calendar
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
9. 9.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
10. 10.What does the cloud server do? (a) stores data online (b) acts on a command (c) shows data to you (d) reads values, decides
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 sensor measures (c) the app shows it (d) the board reads it
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
16. 16.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
17. 17.Which of these is an IoT device? (a) a paper calendar (b) a fitness band with app (c) a pencil sharpener (d) a wind-up clock
18. 18.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
19. 19.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
22. 22.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) measures the real world
23. 23.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) Wi-Fi (d) cloud server
24. 24.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a wind-up clock (d) a plain table fan
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
26. 26.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
40. 40.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device

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