Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 161 · 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.What does the sensor do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller
7. 7.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a paper calendar
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
12. 12.What does the cloud server do? (a) reads values, decides (b) carries the data (c) shows data to you (d) stores data online
13. 13.What does the phone app do? (a) carries the data (b) acts on a command (c) measures the real world (d) shows data to you
14. 14.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a plain wall switch
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
16. 16.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
18. 18.What does the actuator do? (a) acts on a command (b) stores data online (c) shows data to you (d) measures the real world
19. 19.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi weather station
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
23. 23.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a smart energy meter
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
28. 28.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a paper calendar (d) a plain table fan
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
31. 31.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a paper calendar (d) an app-controlled bulb
32. 32.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi doorbell camera
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
36. 36.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
38. 38.What does the microcontroller do? (a) acts on a command (b) stores data online (c) measures the real world (d) reads values, decides
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?

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