Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 943 · 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 reads values, decides? (a) actuator (b) microcontroller (c) sensor (d) cloud server
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
6. 6.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
7. 7.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a smart energy meter (d) a paper calendar
8. 8.🔢 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
9. 9.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
10. 10.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) cloud server (d) phone app
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
13. 13.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
14. 14.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
15. 15.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a plain table fan (d) a battery torch
16. 16.🌐 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
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
18. 18.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a Wi-Fi smart plug (d) a wind-up clock
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
21. 21.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) carries the data (d) acts on a command
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
25. 25.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
26. 26.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi weather station
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a pencil sharpener (d) a plain wall switch
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
31. 31.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
36. 36.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a pencil sharpener
39. 39.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?

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