Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 182 · 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.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
2. 2.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain wall switch (d) a wind-up clock
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
4. 4.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
7. 7.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a wind-up clock (d) a paper calendar
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a fitness band with app
9. 9.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) phone app (c) microcontroller (d) actuator
10. 10.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
11. 11.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
15. 15.What does the actuator do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
17. 17.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain wall switch
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
20. 20.🌐 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
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain table fan
24. 24.What does the sensor do? (a) reads values, decides (b) carries the data (c) stores data online (d) measures the real world
25. 25.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) phone app (d) sensor
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
28. 28.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
29. 29.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
31. 31.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) actuator (d) sensor
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) a Wi-Fi weather station
33. 33.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) measures the real world (d) carries the data
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) an app-controlled bulb
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
37. 37.What does the phone app do? (a) shows data to you (b) carries the data (c) reads values, decides (d) measures the real world
38. 38.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
39. 39.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a paper calendar
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?

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