Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 766 · 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.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a pencil sharpener (d) a wind-up clock
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
5. 5.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain wall switch (d) a fitness band with app
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a fitness band with app (d) a battery torch
7. 7.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a smart energy meter
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
9. 9.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) microcontroller (d) phone app
10. 10.🔢 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
11. 11.What does the actuator do? (a) measures the real world (b) shows data to you (c) carries the data (d) acts on a command
12. 12.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔢 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
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a wind-up clock
16. 16.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) the app shows it
18. 18.What does the cloud server do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
19. 19.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a wind-up clock (d) a battery torch
22. 22.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
24. 24.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi smart plug (d) a paper calendar
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
30. 30.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
33. 33.🔢 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
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
37. 37.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
38. 38.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi weather station
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?

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