Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 17 · 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) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
3. 3.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
4. 4.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
6. 6.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) cloud server
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a pencil sharpener
8. 8.What does the actuator do? (a) measures the real world (b) carries the data (c) reads values, decides (d) acts on a command
9. 9.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
10. 10.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi weather station
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
14. 14.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
15. 15.What does the sensor do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
17. 17.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
21. 21.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a battery torch (d) a Wi-Fi smart plug
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
25. 25.What does the cloud server do? (a) reads values, decides (b) stores data online (c) carries the data (d) acts on a command
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app
27. 27.🔢 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
28. 28.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
29. 29.🔢 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 board reads it (c) the sensor measures (d) the app shows it
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
31. 31.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
34. 34.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
37. 37.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi doorbell camera
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
40. 40.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a smart energy meter (d) an app-controlled bulb

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