Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 362 · 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.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
2. 2.What does the sensor do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) shows data to you
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
4. 4.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) cloud server
5. 5.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a Wi-Fi smart plug
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
10. 10.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
12. 12.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a paper calendar
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a paper calendar (d) a pencil sharpener
17. 17.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
18. 18.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
19. 19.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
20. 20.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
21. 21.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) microcontroller (d) sensor
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a plain wall switch (d) a battery torch
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
26. 26.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
28. 28.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) phone app (d) cloud server
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
30. 30.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a fitness band with app (d) a Wi-Fi doorbell camera
31. 31.What does the phone app do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
32. 32.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi smart plug (d) a wind-up clock
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) an app-controlled bulb
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
36. 36.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a plain wall switch
39. 39.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?

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