Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 520 · 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.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a fitness band with app (d) a plain table fan
3. 3.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a pencil sharpener (d) a paper calendar
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
7. 7.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
9. 9.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a battery torch (d) a plain table fan
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
13. 13.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) an app-controlled bulb (d) a smart energy meter
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
15. 15.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) Wi-Fi (d) sensor
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
17. 17.What does the actuator do? (a) stores data online (b) acts on a command (c) shows data to you (d) carries the data
18. 18.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a paper calendar
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain table fan (d) a Wi-Fi doorbell camera
21. 21.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a wind-up clock (d) a paper calendar
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
25. 25.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
29. 29.Which of these is an IoT device? (a) a fitness band with app (b) a plain table fan (c) a battery torch (d) a pencil sharpener
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
31. 31.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
33. 33.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
36. 36.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
38. 38.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
39. 39.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?

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