Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 936 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a fitness band with app
5. 5.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) shows data to you
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
9. 9.🌐 In an IoT system, which part measures the real world? (a) actuator (b) phone app (c) Wi-Fi (d) sensor
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
11. 11.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a wind-up clock (d) a battery torch
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
15. 15.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
17. 17.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a smart energy meter (d) a Wi-Fi weather station
23. 23.🔢 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
24. 24.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a plain table fan (d) a plain wall switch
25. 25.What does the cloud server do? (a) stores data online (b) carries the data (c) shows data to you (d) measures the real world
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
29. 29.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
30. 30.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
33. 33.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) carries the data
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
36. 36.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
37. 37.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a paper calendar (d) a wind-up clock
40. 40.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a fitness band with app

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