Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 415 · 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 of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
2. 2.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) cloud server (d) actuator
3. 3.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) phone app (d) actuator
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
5. 5.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) an app-controlled bulb
6. 6.What does the cloud server do? (a) carries the data (b) stores data online (c) acts on a command (d) shows data to you
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a fitness band with app (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a smart energy meter
10. 10.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
11. 11.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
15. 15.🏠 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
16. 16.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) reads values, decides (d) carries the data
17. 17.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a paper calendar
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
24. 24.What does the actuator do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) measures the real world
25. 25.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
28. 28.🔢 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
29. 29.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
36. 36.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) cloud server (d) actuator
37. 37.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a wind-up clock (d) a Wi-Fi smart plug
38. 38.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi doorbell camera
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
40. 40.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a wind-up clock (d) a battery torch

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