Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 382 · 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 of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a plain table fan (d) a pencil sharpener
2. 2.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
3. 3.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) carries the data (d) stores data online
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) an app-controlled bulb (d) a fitness band with app
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
7. 7.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) microcontroller (d) cloud server
8. 8.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
13. 13.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.What does the sensor do? (a) measures the real world (b) shows data to you (c) stores data online (d) carries the data
18. 18.What does the phone app do? (a) stores data online (b) shows data to you (c) measures the real world (d) acts on a command
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
21. 21.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
29. 29.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi weather station
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
33. 33.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
35. 35.What does the actuator do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
38. 38.Which of these is not an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a fitness band with app
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain wall switch (d) a wind-up clock
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?

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