Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 164 · 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.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener
2. 2.🔢 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 cloud stores it (d) the board reads it
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a fitness band with app (d) a smart energy meter
5. 5.🔢 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
6. 6.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) actuator (d) phone app
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
9. 9.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
10. 10.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a smart energy meter (d) a paper calendar
11. 11.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
12. 12.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a plain wall switch (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi weather station
16. 16.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
19. 19.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
20. 20.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
21. 21.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi smart plug
24. 24.What does the cloud server do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
25. 25.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
26. 26.What does the sensor do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
27. 27.What does the Wi-Fi link do? (a) reads values, decides (b) stores data online (c) measures the real world (d) carries the data
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
32. 32.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain table fan (d) a paper calendar
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
34. 34.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
35. 35.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) an app-controlled bulb (d) a fitness band with app
36. 36.What does the phone app do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) carries the data
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
40. 40.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a paper calendar

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