Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 610 · 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) actuator (c) phone app (d) Wi-Fi
2. 2.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a fitness band with app (d) a pencil sharpener
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
4. 4.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a paper calendar
8. 8.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
9. 9.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
10. 10.What does the actuator do? (a) acts on a command (b) shows data to you (c) stores data online (d) reads values, decides
11. 11.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a plain table fan (d) a wind-up clock
12. 12.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
13. 13.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) cloud server (d) Wi-Fi
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
22. 22.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi weather station
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
24. 24.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) cloud server (d) actuator
25. 25.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi weather station
26. 26.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
28. 28.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) an app-controlled bulb (d) a smart energy meter
29. 29.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
32. 32.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a battery torch (d) a plain table fan
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a battery torch (d) an app-controlled bulb
39. 39.What does the Wi-Fi link do? (a) reads values, decides (b) stores data online (c) carries the data (d) acts on a command
40. 40.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map

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