Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 491 · 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 weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a paper calendar (d) a wind-up clock
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
4. 4.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) Wi-Fi (d) microcontroller
6. 6.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
9. 9.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
11. 11.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
12. 12.🔢 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
13. 13.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
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 battery torch
15. 15.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a battery torch
16. 16.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
18. 18.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
20. 20.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
24. 24.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
27. 27.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
28. 28.🔢 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
29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
30. 30.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) actuator (d) microcontroller
31. 31.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) microcontroller (d) actuator
32. 32.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a battery torch (d) a paper calendar
35. 35.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
39. 39.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a smart energy meter (d) an app-controlled bulb
40. 40.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device

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