Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 293 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
2. 2.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) a Wi-Fi weather station
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a smart energy meter
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
6. 6.🔢 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
7. 7.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
8. 8.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
11. 11.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 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
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a plain table fan (d) a plain wall switch
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
17. 17.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
20. 20.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) actuator (d) sensor
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
22. 22.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
23. 23.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
24. 24.What does the phone app do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
25. 25.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
26. 26.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi smart plug
27. 27.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) actuator (d) microcontroller
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
30. 30.What does the cloud server do? (a) shows data to you (b) reads values, decides (c) stores data online (d) carries the data
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a wind-up clock
33. 33.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) sensor (d) microcontroller
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
35. 35.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
36. 36.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
37. 37.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
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.🔢 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

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