Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 852 · 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 is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
2. 2.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a plain wall switch
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a smart energy meter (d) a plain wall switch
4. 4.What does the sensor do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
9. 9.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
11. 11.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
13. 13.🌐 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
14. 14.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
17. 17.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi smart plug
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
19. 19.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a Wi-Fi weather station
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a paper calendar (d) a pencil sharpener
21. 21.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a pencil sharpener
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
23. 23.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
25. 25.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a pencil sharpener
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a fitness band with app
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
32. 32.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) 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.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) phone app (d) microcontroller
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
37. 37.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
38. 38.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
39. 39.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) cloud server
40. 40.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) phone app (d) sensor

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