Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 221 · 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) a Wi-Fi smart plug (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi weather station
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi weather station (d) an app-controlled bulb
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
4. 4.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
5. 5.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi weather station
9. 9.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
12. 12.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
13. 13.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
15. 15.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
16. 16.What does the cloud server do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
17. 17.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
19. 19.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) cloud server (c) phone app (d) sensor
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
21. 21.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
25. 25.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
28. 28.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
36. 36.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
38. 38.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a battery torch (d) a paper calendar

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