Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 626 · 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.What does the actuator do? (a) carries the data (b) stores data online (c) acts on a command (d) shows data to you
2. 2.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
5. 5.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a smart energy meter
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
8. 8.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
12. 12.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
14. 14.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) acts on a command
15. 15.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
16. 16.What does the sensor do? (a) measures the real world (b) acts on a command (c) shows data to you (d) stores data online
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
19. 19.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
22. 22.🔢 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
23. 23.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
25. 25.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
26. 26.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a battery torch
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
31. 31.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
35. 35.🔢 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
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi smart plug
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain table fan (d) a battery torch

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