Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 72 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
2. 2.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a battery torch
3. 3.What does the cloud server do? (a) acts on a command (b) stores data online (c) shows data to you (d) measures the real world
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
5. 5.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a plain wall switch
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
8. 8.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
9. 9.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
12. 12.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the cloud stores it
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
19. 19.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
20. 20.What does the actuator do? (a) stores data online (b) acts on a command (c) shows data to you (d) reads values, decides
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi doorbell camera
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
24. 24.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
25. 25.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain table fan
26. 26.🔢 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
27. 27.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
28. 28.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
30. 30.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
31. 31.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) measures the real world
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a fitness band with app
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi smart plug
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
37. 37.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔢 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
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?

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