Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 942 · 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 measures the real world? (a) actuator (b) cloud server (c) phone app (d) sensor
2. 2.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
3. 3.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi weather station
4. 4.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) Wi-Fi (d) microcontroller
5. 5.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi smart plug
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
8. 8.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
9. 9.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi weather station
10. 10.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
13. 13.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
15. 15.🔍 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 battery torch
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a smart energy meter
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
19. 19.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
20. 20.What does the phone app do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
21. 21.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
22. 22.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) sensor (d) phone app
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
26. 26.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) cloud server (d) actuator
27. 27.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
29. 29.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi doorbell camera
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi weather station (d) a battery torch
33. 33.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
35. 35.🔢 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
36. 36.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a battery torch (d) a pencil sharpener
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
40. 40.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 pencil sharpener

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