Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 322 · 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.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
3. 3.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
7. 7.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
8. 8.What does the sensor do? (a) carries the data (b) stores data online (c) reads values, decides (d) measures the real world
9. 9.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
14. 14.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain wall switch
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
17. 17.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
18. 18.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a smart energy meter
20. 20.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
22. 22.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) cloud server (d) sensor
23. 23.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain wall switch (d) a paper calendar
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
27. 27.🔢 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
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi weather station
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
30. 30.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi weather station (d) a plain table fan
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
40. 40.What does the phone app do? (a) shows data to you (b) measures the real world (c) acts on a command (d) reads values, decides

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