Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 740 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
3. 3.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
4. 4.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
7. 7.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a fitness band with app
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
10. 10.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) sensor (d) actuator
11. 11.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
13. 13.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) shows data to you
14. 14.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
15. 15.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a smart energy meter
18. 18.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) an app-controlled bulb (d) a fitness band with app
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a fitness band with app
20. 20.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔢 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
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
25. 25.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) cloud server (d) microcontroller
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
33. 33.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
35. 35.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a battery torch
36. 36.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain wall switch (d) a paper calendar
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
38. 38.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
40. 40.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device

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