Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 471 · 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.What does the cloud server do? (a) carries the data (b) acts on a command (c) shows data to you (d) stores data online
2. 2.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
3. 3.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a Wi-Fi doorbell camera (d) a smart energy meter
5. 5.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
6. 6.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
7. 7.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a pencil sharpener (d) a plain wall switch
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
9. 9.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
13. 13.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
22. 22.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi smart plug
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
24. 24.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a pencil sharpener
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station
29. 29.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
30. 30.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
32. 32.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
36. 36.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
40. 40.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) Wi-Fi (d) phone app

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