Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 977 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a plain table fan
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
5. 5.What does the cloud server do? (a) shows data to you (b) stores data online (c) carries the data (d) acts on a command
6. 6.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
8. 8.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) an app-controlled bulb (d) a fitness band with app
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) sensor (d) Wi-Fi
15. 15.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
16. 16.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a smart energy meter (d) an app-controlled bulb
18. 18.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
22. 22.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) sensor
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
26. 26.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) sensor
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
30. 30.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi smart plug
33. 33.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
35. 35.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
36. 36.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a paper calendar
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain wall switch (d) a wind-up clock
39. 39.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?

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