Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 179 · 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 phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
4. 4.🔢 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
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) the board reads it
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
8. 8.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
9. 9.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a wind-up clock
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi doorbell camera
13. 13.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a battery torch (d) a paper calendar
14. 14.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
15. 15.What does the microcontroller do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
16. 16.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi smart plug
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
19. 19.What does the sensor do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) acts on a command
20. 20.What does the cloud server do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a paper calendar
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
25. 25.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) phone app (d) sensor
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
28. 28.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a wind-up clock (d) a paper calendar
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
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) it is sent by Wi-Fi (b) the board reads it
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain wall switch
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a pencil sharpener
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?

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