Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 922 · 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 15 minutes. How many readings arrive in 1 hour?
2. 2.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
3. 3.What does the sensor do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
7. 7.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
9. 9.What does the phone app do? (a) carries the data (b) stores data online (c) shows data to you (d) acts on a command
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) an app-controlled bulb
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) an app-controlled bulb (d) a fitness band with app
13. 13.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
14. 14.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) cloud server (d) sensor
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
16. 16.What does the actuator do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
17. 17.🌐 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
18. 18.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a paper calendar (d) a battery torch
21. 21.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) the board reads it
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
23. 23.🏠 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
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
26. 26.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
34. 34.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) microcontroller
35. 35.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
38. 38.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a smart energy meter (d) a wind-up clock
39. 39.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi weather station (d) a pencil sharpener
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?

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