Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 609 · 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 actuator do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world
2. 2.What does the sensor do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) the cloud stores it
6. 6.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi smart plug (d) a fitness band with app
7. 7.🌐 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
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
10. 10.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
11. 11.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
15. 15.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
18. 18.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
19. 19.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
20. 20.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a plain table fan
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
23. 23.What does the phone app do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) measures the real world
24. 24.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
27. 27.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
28. 28.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
29. 29.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a pencil sharpener
30. 30.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
33. 33.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
39. 39.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch

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