Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 846 · 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 smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain wall switch
3. 3.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
4. 4.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
7. 7.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
9. 9.🌐 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
10. 10.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
13. 13.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
15. 15.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
17. 17.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
19. 19.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) stores data online
20. 20.What does the cloud server do? (a) shows data to you (b) stores data online (c) acts on a command (d) measures the real world
21. 21.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) an app-controlled bulb
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
28. 28.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
29. 29.What does the phone app do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a smart energy meter
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
34. 34.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
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
36. 36.🔢 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 sensor measures (d) the board reads it
37. 37.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a plain table fan (d) a smart energy meter
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
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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