Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 330 · 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 measures the real world? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
3. 3.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
7. 7.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
15. 15.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
16. 16.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
17. 17.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) actuator
18. 18.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) sensor (d) phone app
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
20. 20.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a plain table fan
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a paper calendar
24. 24.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a plain wall switch (d) an app-controlled bulb
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi weather station
32. 32.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
33. 33.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi smart plug
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
37. 37.What does the actuator do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
38. 38.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?

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