Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 634 · 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 cloud server do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
4. 4.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller
5. 5.What does the phone app do? (a) carries the data (b) shows data to you (c) reads values, decides (d) measures the real world
6. 6.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
8. 8.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
9. 9.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
11. 11.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a paper calendar (d) a pencil sharpener
12. 12.What does the actuator do? (a) acts on a command (b) stores data online (c) measures the real world (d) reads values, decides
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🔢 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
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi smart plug
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
18. 18.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a paper calendar (d) a fitness band with app
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a paper calendar
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) a smart energy meter
25. 25.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a pencil sharpener (d) a plain wall switch
26. 26.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) an app-controlled bulb
27. 27.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
28. 28.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) carries the data (d) measures the real world
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
32. 32.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) Wi-Fi (d) microcontroller
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
34. 34.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
35. 35.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a pencil sharpener
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
38. 38.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
40. 40.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a plain table fan

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