Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 289 · 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 carries the data? (a) cloud server (b) Wi-Fi (c) microcontroller (d) sensor
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a fitness band with app (d) a smart energy meter
4. 4.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
5. 5.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) shows data to you
6. 6.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
7. 7.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) cloud server (d) sensor
8. 8.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a fitness band with app
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a pencil sharpener (d) a wind-up clock
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
12. 12.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
14. 14.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) an app-controlled bulb
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi smart plug
21. 21.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
22. 22.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
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
24. 24.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
28. 28.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) microcontroller
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
34. 34.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) microcontroller (d) cloud server
35. 35.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
37. 37.What does the actuator do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
40. 40.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) microcontroller (d) cloud server

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