Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 506 · 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) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain table fan (d) a smart energy meter
3. 3.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan
4. 4.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
7. 7.What does the cloud server do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
8. 8.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
9. 9.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) actuator (d) phone app
12. 12.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi smart plug (d) a fitness band with app
14. 14.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) phone app (d) microcontroller
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
21. 21.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
22. 22.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a battery torch (d) a pencil sharpener
23. 23.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
25. 25.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
26. 26.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a smart energy meter
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi weather station
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
29. 29.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) Wi-Fi (d) sensor
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a battery torch
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
32. 32.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
38. 38.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?

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