Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 917 · 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.🔢 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
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
3. 3.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
4. 4.What does the phone app do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
9. 9.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a plain table fan (d) a smart energy meter
10. 10.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) phone app (d) cloud server
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
16. 16.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
17. 17.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a paper calendar (d) a plain wall switch
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
20. 20.What does the actuator do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
21. 21.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a battery torch
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a fitness band with app (d) a paper calendar
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a battery torch
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
28. 28.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi smart plug
29. 29.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) phone app (d) actuator
30. 30.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
31. 31.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
33. 33.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) stores data online
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
37. 37.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain wall switch
38. 38.What does the sensor do? (a) carries the data (b) stores data online (c) shows data to you (d) measures the real world
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
40. 40.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener

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