Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 14 · 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 is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a fitness band with app (d) a Wi-Fi smart plug
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a paper calendar (d) a smart energy meter
3. 3.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a wind-up clock (d) a Wi-Fi weather station
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a fitness band with app
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain table fan
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
8. 8.🔢 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
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
10. 10.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain wall switch
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi weather station
12. 12.What does the sensor do? (a) measures the real world (b) stores data online (c) reads values, decides (d) carries the data
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
15. 15.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) phone app (d) cloud server
16. 16.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
17. 17.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) shows data to you (d) carries the data
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
20. 20.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
22. 22.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
27. 27.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) cloud server (d) actuator
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
29. 29.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) Wi-Fi
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
32. 32.What does the actuator do? (a) acts on a command (b) reads values, decides (c) stores data online (d) carries the data
33. 33.🔢 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
34. 34.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
37. 37.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a plain wall switch
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
40. 40.What does the cloud server do? (a) acts on a command (b) stores data online (c) shows data to you (d) carries the data

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