Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 961 · 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.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
4. 4.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
6. 6.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) phone app (d) cloud server
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi smart plug
10. 10.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a plain wall switch (d) a wind-up clock
11. 11.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
12. 12.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a fitness band with app
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
14. 14.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
16. 16.What does the sensor do? (a) measures the real world (b) acts on a command (c) carries the data (d) shows data to you
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a paper calendar (d) a wind-up clock
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
21. 21.What does the phone app do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
22. 22.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
23. 23.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) Wi-Fi (d) microcontroller
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a battery torch
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
27. 27.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
28. 28.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a battery torch (d) a paper calendar
29. 29.What does the actuator do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) carries the data
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
31. 31.🔢 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 board reads it (d) the app shows it
32. 32.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) acts on a command
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
40. 40.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) cloud server (d) sensor

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