Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 263 · 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 the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
2. 2.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
3. 3.What does the actuator do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
4. 4.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
5. 5.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a smart energy meter (d) a fitness band with app
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
8. 8.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
10. 10.What does the phone app do? (a) shows data to you (b) carries the data (c) reads values, decides (d) measures the real world
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain table fan
13. 13.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a fitness band with app
14. 14.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) actuator (d) microcontroller
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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
20. 20.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) cloud server (d) Wi-Fi
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
24. 24.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
26. 26.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi weather station
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
30. 30.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a wind-up clock
31. 31.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a battery torch (d) a fitness band with app
32. 32.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
34. 34.What does the microcontroller do? (a) carries the data (b) stores data online (c) shows data to you (d) reads values, decides
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?

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