Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 555 · 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.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
4. 4.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a battery torch (d) a paper calendar
8. 8.What does the actuator do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) stores data online
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
10. 10.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a smart energy meter
16. 16.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
19. 19.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
20. 20.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) cloud server (d) sensor
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a paper calendar (d) a fitness band with app
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the app shows it
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
25. 25.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
28. 28.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) microcontroller
29. 29.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
31. 31.What does the microcontroller do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 In an IoT system, which part acts on a command? (a) phone app (b) cloud server (c) Wi-Fi (d) actuator
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) a fitness band with app
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
40. 40.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) carries the data

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