Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 453 · 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 25 bytes. How many bytes do 80 readings take?
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
3. 3.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔢 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 app shows it (d) the board reads it
5. 5.What does the phone app do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
6. 6.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a plain wall switch (d) a paper calendar
7. 7.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) cloud server (d) sensor
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a smart energy meter (d) an app-controlled bulb
10. 10.What does the sensor do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
11. 11.What does the actuator do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
12. 12.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
14. 14.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi smart plug (d) a smart energy meter
15. 15.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) an app-controlled bulb (d) a smart energy meter
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a plain wall switch (d) a plain table fan
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
23. 23.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
25. 25.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi weather station (d) a battery torch
26. 26.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a fitness band with app (d) an app-controlled bulb
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a fitness band with app (d) a Wi-Fi smart plug
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
30. 30.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
33. 33.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain table fan
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi weather station
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
37. 37.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) stores data online (d) shows data to you
38. 38.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
39. 39.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) cloud server (d) sensor
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a pencil sharpener

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