Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 254 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
3. 3.What does the actuator do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
4. 4.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) measures the real world (d) acts on a command
5. 5.🔢 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
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
7. 7.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a fitness band with app
8. 8.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
11. 11.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a fitness band with app
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi doorbell camera
17. 17.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) cloud server (d) actuator
18. 18.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
19. 19.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a plain wall switch (d) a wind-up clock
21. 21.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
23. 23.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) sensor (d) microcontroller
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
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 phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) carries the data
28. 28.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
29. 29.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a battery torch
30. 30.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
31. 31.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
34. 34.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi weather station
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
38. 38.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
39. 39.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?

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