Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 156 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
3. 3.🔢 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
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
5. 5.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
8. 8.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
9. 9.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
10. 10.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) cloud server (d) sensor
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
12. 12.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
13. 13.What does the cloud server do? (a) shows data to you (b) carries the data (c) reads values, decides (d) stores data online
14. 14.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a plain wall switch (d) a pencil sharpener
15. 15.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
16. 16.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi smart plug
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
18. 18.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a battery torch
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi doorbell camera
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
26. 26.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) cloud server (d) phone app
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
28. 28.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain wall switch
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
33. 33.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
36. 36.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi doorbell camera
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
39. 39.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?

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