Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 288 · 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, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
3. 3.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
5. 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
8. 8.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) sensor (d) microcontroller
9. 9.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) acts on a command
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a battery torch (d) a Wi-Fi doorbell camera
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
14. 14.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a battery torch (d) a plain wall switch
15. 15.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) sensor (d) cloud server
16. 16.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) phone app (d) sensor
17. 17.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
21. 21.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a fitness band with app
22. 22.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
23. 23.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) sensor
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
28. 28.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) Wi-Fi (d) sensor
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
31. 31.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
32. 32.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a battery torch
33. 33.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a pencil sharpener (d) a plain wall switch
34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
36. 36.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb
37. 37.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a fitness band with app
40. 40.What does the actuator do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world

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