Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 467 · 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.What does the actuator do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
3. 3.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a wind-up clock
4. 4.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) an app-controlled bulb (d) a battery torch
5. 5.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
8. 8.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain wall switch
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain table fan
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
14. 14.🔢 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
15. 15.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a fitness band with app
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a battery torch (d) an app-controlled bulb
18. 18.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
20. 20.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
22. 22.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
24. 24.🔢 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
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
26. 26.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
27. 27.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
30. 30.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a battery torch (d) a pencil sharpener
31. 31.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) an app-controlled bulb (d) a plain wall switch
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
34. 34.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) cloud server (d) microcontroller
35. 35.What does the cloud server do? (a) carries the data (b) measures the real world (c) acts on a command (d) stores data online
36. 36.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) phone app (c) sensor (d) microcontroller
37. 37.What does the sensor do? (a) stores data online (b) measures the real world (c) shows data to you (d) acts on a command
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
40. 40.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a plain table fan (d) a paper calendar

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