Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 60 · 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 an IoT device? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a smart energy meter
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
3. 3.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a paper calendar (d) a fitness band with app
5. 5.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) sensor
6. 6.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi smart plug (d) a battery torch
12. 12.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
14. 14.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
17. 17.🔢 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 app shows it (c) the sensor measures (d) the cloud stores it
18. 18.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) actuator (d) microcontroller
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
20. 20.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a wind-up clock
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
22. 22.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a smart energy meter
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
27. 27.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
32. 32.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi doorbell camera
33. 33.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a battery torch (d) a plain table fan
34. 34.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
36. 36.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
37. 37.🔢 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
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
39. 39.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) carries the data (d) stores data online
40. 40.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) stores data online

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