Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 420 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
2. 2.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
4. 4.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a paper calendar
5. 5.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
6. 6.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
7. 7.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
8. 8.What does the sensor do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
10. 10.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) an app-controlled bulb
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a Wi-Fi smart plug
12. 12.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi smart plug (d) an app-controlled bulb
13. 13.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) an app-controlled bulb
16. 16.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) phone app (d) sensor
17. 17.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) phone app (d) microcontroller
18. 18.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi weather station
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
20. 20.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
21. 21.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
22. 22.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
24. 24.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a wind-up clock (d) a plain wall switch
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
26. 26.What does the phone app do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
27. 27.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
30. 30.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
31. 31.What does the actuator do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
34. 34.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
36. 36.What does the microcontroller do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
37. 37.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a plain wall switch (d) a fitness band with app
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) a smart energy meter
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
40. 40.🌐 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

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