Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 451 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
2. 2.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) a fitness band with app
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
6. 6.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
8. 8.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi smart plug
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
14. 14.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) sensor (d) microcontroller
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a pencil sharpener (d) a plain wall switch
16. 16.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) shows data to you
17. 17.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a paper calendar (d) a wind-up clock
18. 18.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
22. 22.What does the sensor do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
24. 24.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a smart energy meter (d) a battery torch
29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a smart energy meter
32. 32.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
39. 39.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?

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