Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 543 · 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 IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
4. 4.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
6. 6.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) cloud server (d) phone app
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a plain wall switch
9. 9.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) an app-controlled bulb
11. 11.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
13. 13.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) cloud server (d) microcontroller
15. 15.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a smart energy meter (d) an app-controlled bulb
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
17. 17.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) actuator (d) sensor
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
20. 20.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a battery torch (d) a fitness band with app
22. 22.🔢 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
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
26. 26.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
27. 27.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi smart plug
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a fitness band with app (c) a pencil sharpener (d) a wind-up clock
29. 29.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a wind-up clock (d) an app-controlled bulb
30. 30.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
32. 32.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) actuator (d) cloud server
33. 33.What does the microcontroller do? (a) carries the data (b) shows data to you (c) acts on a command (d) reads values, decides
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
35. 35.What does the sensor do? (a) measures the real world (b) acts on a command (c) carries the data (d) shows data to you
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a plain table fan
37. 37.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?

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