Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 599 · 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.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
2. 2.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
3. 3.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
5. 5.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi doorbell camera
6. 6.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
9. 9.🔢 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 sensor measures (c) the board reads it (d) the cloud stores it
10. 10.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a smart energy meter (d) a fitness band with app
11. 11.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
12. 12.What does the phone app do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
19. 19.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) sensor (d) phone app
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a smart energy meter
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
24. 24.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi weather station (d) an app-controlled bulb
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a battery torch (d) a smart energy meter
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
31. 31.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
33. 33.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
36. 36.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?

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