Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 902 · 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.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
2. 2.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
5. 5.What does the sensor do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
7. 7.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
9. 9.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
11. 11.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a pencil sharpener
12. 12.What does the cloud server do? (a) acts on a command (b) measures the real world (c) shows data to you (d) stores data online
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
14. 14.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) carries the data (d) shows data to you
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
16. 16.What does the phone app do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
17. 17.🌐 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
18. 18.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) an app-controlled bulb (d) a plain wall switch
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a wind-up clock
22. 22.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
23. 23.What does the actuator do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
24. 24.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi weather station
25. 25.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a wind-up clock
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi doorbell camera
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
29. 29.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain table fan
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
39. 39.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a wind-up clock
40. 40.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a wind-up clock (d) a smart energy meter

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