Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 111 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
3. 3.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a battery torch (d) a Wi-Fi doorbell camera
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
12. 12.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi smart plug
13. 13.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) a fitness band with app
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
18. 18.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
19. 19.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) microcontroller
20. 20.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) stores data online
21. 21.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
22. 22.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a wind-up clock (d) an app-controlled bulb
24. 24.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
26. 26.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a smart energy meter (d) an app-controlled bulb
27. 27.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) carries the data
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a plain wall switch (d) a battery torch
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain table fan (d) a fitness band with app
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
36. 36.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
38. 38.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?

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