Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 296 · 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.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) microcontroller (d) phone app
2. 2.🌐 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
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi smart plug (d) a smart energy meter
5. 5.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a battery torch
7. 7.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain table fan
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
11. 11.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
16. 16.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
17. 17.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) reads values, decides
18. 18.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) cloud server (c) sensor (d) actuator
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
20. 20.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
22. 22.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) cloud server (d) phone app
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
25. 25.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) carries the data (d) acts on a command
26. 26.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) measures the real world
27. 27.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
29. 29.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) carries the data (d) acts on a command
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
33. 33.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
36. 36.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
37. 37.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
40. 40.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app

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