Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 243 · 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 smart energy meter (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi weather station
2. 2.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
4. 4.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a smart energy meter
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
8. 8.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a smart energy meter
9. 9.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
10. 10.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi weather station
11. 11.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
12. 12.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the microcontroller do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a pencil sharpener
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
19. 19.What does the sensor do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi weather station (d) a plain wall switch
24. 24.🏠 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
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
27. 27.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
28. 28.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
34. 34.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a pencil sharpener (d) a battery torch
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
37. 37.🔢 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
38. 38.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?

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