Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 433 · 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.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi doorbell camera
5. 5.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) sensor (d) phone app
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
7. 7.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a fitness band with app (d) a plain table fan
8. 8.What does the phone app do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
9. 9.🔢 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
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
13. 13.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
14. 14.🌐 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
15. 15.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain table fan (d) a battery torch
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a battery torch (d) a paper calendar
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
20. 20.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a smart energy meter (d) a paper calendar
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
23. 23.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) cloud server (d) Wi-Fi
24. 24.What does the actuator do? (a) stores data online (b) acts on a command (c) reads values, decides (d) measures the real world
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
30. 30.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
34. 34.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
35. 35.What does the cloud server do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
39. 39.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a smart energy meter
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?

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