Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 225 · 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 an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a battery torch (d) a paper calendar
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a plain wall switch
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
7. 7.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) cloud server (d) Wi-Fi
9. 9.What does the actuator do? (a) measures the real world (b) shows data to you (c) acts on a command (d) stores data online
10. 10.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
16. 16.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
18. 18.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
19. 19.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
20. 20.What does the sensor do? (a) carries the data (b) measures the real world (c) reads values, decides (d) acts on a command
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
25. 25.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi weather station (d) a plain wall switch
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
32. 32.What does the cloud server do? (a) stores data online (b) acts on a command (c) shows data to you (d) reads values, decides
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
36. 36.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
38. 38.What does the microcontroller do? (a) stores data online (b) acts on a command (c) shows data to you (d) reads values, decides
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
40. 40.🔢 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 sensor measures (d) the app shows it

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