Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 370 · 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.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the cloud stores it
3. 3.🔢 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 sensor measures (c) the app shows it (d) the cloud stores it
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
5. 5.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a paper calendar
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
7. 7.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
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.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain table fan
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) sensor (d) cloud server
12. 12.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a wind-up clock
13. 13.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
14. 14.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) microcontroller (d) Wi-Fi
15. 15.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) a smart energy meter
16. 16.🏠 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
17. 17.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
18. 18.What does the actuator do? (a) stores data online (b) acts on a command (c) measures the real world (d) reads values, decides
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
22. 22.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain wall switch
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
27. 27.What does the phone app do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
28. 28.What does the Wi-Fi link do? (a) measures the real world (b) acts on a command (c) carries the data (d) reads values, decides
29. 29.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the cloud stores it
30. 30.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) microcontroller (d) sensor
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
32. 32.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a Wi-Fi smart plug
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
34. 34.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) sensor (d) phone app
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
36. 36.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain wall switch (d) a paper calendar
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?

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