Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 394 · 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.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
3. 3.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) sensor
4. 4.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
5. 5.What does the actuator do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
6. 6.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi smart plug
7. 7.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi weather station
8. 8.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
11. 11.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a Wi-Fi doorbell camera
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi weather station
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
15. 15.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock
16. 16.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
20. 20.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
23. 23.What does the phone app do? (a) measures the real world (b) shows data to you (c) acts on a command (d) carries the data
24. 24.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
25. 25.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a paper calendar
26. 26.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
27. 27.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
29. 29.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
33. 33.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) phone app (d) actuator
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
38. 38.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
39. 39.What does the sensor do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain wall switch (d) a wind-up clock

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