Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 567 · 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, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
2. 2.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a wind-up clock
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
8. 8.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a battery torch
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) cloud server
12. 12.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
13. 13.What does the actuator do? (a) carries the data (b) measures the real world (c) acts on a command (d) shows data to you
14. 14.🌐 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
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi smart plug
16. 16.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
17. 17.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
19. 19.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a fitness band with app (d) a battery torch
23. 23.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
24. 24.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a battery torch
27. 27.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
29. 29.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
32. 32.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
33. 33.What does the cloud server do? (a) reads values, decides (b) carries the data (c) acts on a command (d) stores data online
34. 34.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a smart energy meter (d) a fitness band with app
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
37. 37.What does the phone app do? (a) measures the real world (b) stores data online (c) reads values, decides (d) shows data to you
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) a smart energy meter
40. 40.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) shows data to you (d) reads values, decides

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