Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 264 · 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.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a Wi-Fi doorbell camera
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
3. 3.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) phone app (d) microcontroller
4. 4.What does the microcontroller do? (a) acts on a command (b) carries the data (c) reads values, decides (d) shows data to you
5. 5.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
6. 6.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
8. 8.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
11. 11.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a fitness band with app
14. 14.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi smart plug
15. 15.🔢 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 app shows it (d) the board reads it
16. 16.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
17. 17.What does the phone app do? (a) stores data online (b) carries the data (c) measures the real world (d) shows data to you
18. 18.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a fitness band with app
20. 20.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a battery torch
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
25. 25.🔢 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
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
30. 30.What does the cloud server do? (a) carries the data (b) reads values, decides (c) stores data online (d) acts on a command
31. 31.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a Wi-Fi weather station
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) cloud server (d) actuator
34. 34.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
35. 35.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
37. 37.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a smart energy meter (d) an app-controlled bulb
38. 38.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) cloud server (d) sensor
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain table fan (d) a battery torch

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