Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 756 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
2. 2.What does the Wi-Fi link do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
3. 3.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a wind-up clock
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
7. 7.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
8. 8.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a smart energy meter (d) a paper calendar
9. 9.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a smart energy meter
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
13. 13.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
14. 14.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
15. 15.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a wind-up clock (d) a plain table fan
16. 16.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
17. 17.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a paper calendar (d) a plain table fan
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
22. 22.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a fitness band with app
23. 23.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
24. 24.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
29. 29.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) Wi-Fi
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
31. 31.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi weather station
32. 32.What does the phone app do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
33. 33.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
36. 36.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) phone app (d) actuator
38. 38.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a Wi-Fi weather station
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device

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