Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 557 · 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.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
3. 3.🌐 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
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi doorbell camera
5. 5.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
7. 7.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) sensor (d) cloud server
8. 8.🏠 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
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a plain table fan (d) a pencil sharpener
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
13. 13.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain wall switch
16. 16.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a plain table fan
20. 20.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a fitness band with app (d) a pencil sharpener
21. 21.What does the cloud server do? (a) measures the real world (b) carries the data (c) stores data online (d) shows data to you
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
25. 25.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a wind-up clock (d) a plain wall switch
27. 27.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) Wi-Fi (d) sensor
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
31. 31.What does the actuator do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
32. 32.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi doorbell camera
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
34. 34.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
36. 36.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
39. 39.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi smart plug
40. 40.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock

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