Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 84 · 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 of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a fitness band with app
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
4. 4.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
5. 5.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi smart plug
7. 7.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) microcontroller (d) sensor
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a battery torch (d) a paper calendar
11. 11.What does the cloud server do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
12. 12.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a fitness band with app (d) a plain wall switch
14. 14.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) measures the real world
15. 15.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) carries the data (d) shows data to you
16. 16.What does the actuator do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
19. 19.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a paper calendar (d) a Wi-Fi weather station
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain wall switch (d) an app-controlled bulb
24. 24.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
27. 27.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔍 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 doorbell camera
31. 31.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi weather station
32. 32.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) an app-controlled bulb
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
34. 34.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
36. 36.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
37. 37.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) cloud server (c) actuator (d) sensor
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
40. 40.What does the sensor do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online

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