Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 407 · 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.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) actuator (d) sensor
3. 3.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a plain wall switch
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a pencil sharpener (d) a paper calendar
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
9. 9.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
12. 12.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
13. 13.What does the cloud server do? (a) stores data online (b) measures the real world (c) reads values, decides (d) shows data to you
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
15. 15.Which of these is not an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
16. 16.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
17. 17.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
18. 18.What does the sensor do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
19. 19.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
21. 21.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a pencil sharpener
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
23. 23.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a Wi-Fi doorbell camera
27. 27.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) sensor (d) phone app
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
29. 29.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a plain table fan
30. 30.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) phone app (d) sensor
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
32. 32.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
33. 33.🔢 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 board reads it (d) the app shows it
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
35. 35.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) stores data online (d) acts on a command
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
38. 38.🔢 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
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it

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