Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 683 · 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 is the odd one out? (a) a battery torch (b) a paper calendar (c) a pencil sharpener (d) a fitness band with app
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
3. 3.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) carries the data (d) reads values, decides
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
5. 5.What does the actuator do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a paper calendar (d) a fitness band with app
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
12. 12.What does the phone app do? (a) shows data to you (b) reads values, decides (c) stores data online (d) acts on a command
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
15. 15.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
17. 17.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
22. 22.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
23. 23.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a paper calendar
24. 24.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
25. 25.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a smart energy meter
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
28. 28.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain wall switch
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a plain table fan (d) a pencil sharpener
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
34. 34.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🏠 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
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
38. 38.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it

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