Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 612 · 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 stores data online? (a) microcontroller (b) phone app (c) cloud server (d) Wi-Fi
2. 2.What does the actuator do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
5. 5.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) actuator (d) cloud server
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
10. 10.What does the phone app do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
11. 11.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
13. 13.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) sensor (d) cloud server
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
15. 15.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
19. 19.What does the sensor do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
24. 24.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) phone app (d) microcontroller
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
26. 26.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain wall switch (d) a plain table fan
27. 27.🔢 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
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
29. 29.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a paper calendar (d) a plain table fan
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
31. 31.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi doorbell camera
33. 33.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi weather station
34. 34.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
35. 35.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?

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