Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 945 · 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.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) phone app (d) actuator
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the board reads it
3. 3.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a battery torch
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
5. 5.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
6. 6.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) phone app
7. 7.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a battery torch
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) a smart energy meter
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
12. 12.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain table fan
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
17. 17.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
20. 20.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a plain table fan (d) a Wi-Fi doorbell camera
21. 21.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
22. 22.🌐 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
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a pencil sharpener
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi weather station (d) a plain wall switch
27. 27.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
30. 30.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a plain wall switch (d) a pencil sharpener
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) a Wi-Fi doorbell camera
33. 33.What does the sensor do? (a) measures the real world (b) acts on a command (c) stores data online (d) carries the data
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
35. 35.What does the phone app do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
37. 37.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
38. 38.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi smart plug (d) a wind-up clock
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?

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