Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 73 · 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.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
2. 2.What does the microcontroller do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
3. 3.What does the actuator do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a smart energy meter (d) a plain wall switch
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
7. 7.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
10. 10.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
14. 14.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
16. 16.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a Wi-Fi weather station (d) an app-controlled bulb
17. 17.What does the phone app do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
20. 20.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a wind-up clock (d) a paper calendar
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
23. 23.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a wind-up clock (d) a paper calendar
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
27. 27.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) actuator (d) cloud server
28. 28.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
31. 31.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) carries the data (d) reads values, decides
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
33. 33.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi weather station
34. 34.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
35. 35.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
37. 37.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) stores data online (d) carries the data
38. 38.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
39. 39.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?

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