Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 409 · 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.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
2. 2.🏠 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
3. 3.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
4. 4.What does the sensor do? (a) shows data to you (b) acts on a command (c) carries the data (d) measures the real world
5. 5.What does the actuator do? (a) carries the data (b) shows data to you (c) measures the real world (d) acts on a command
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
9. 9.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
13. 13.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a fitness band with app (d) a battery torch
16. 16.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a plain wall switch
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a battery torch
18. 18.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
19. 19.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
20. 20.What does the cloud server do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
21. 21.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
24. 24.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a wind-up clock
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
28. 28.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
29. 29.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) an app-controlled bulb
32. 32.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) microcontroller (d) Wi-Fi
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain table fan
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?

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