Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 303 · 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.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
4. 4.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) actuator (d) microcontroller
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 cloud stores it (c) the board reads it (d) the sensor measures
6. 6.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
9. 9.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
10. 10.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
11. 11.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
13. 13.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) sensor (d) cloud server
14. 14.What does the actuator do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
16. 16.What does the sensor do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
17. 17.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) an app-controlled bulb (d) a fitness band with app
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
20. 20.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
23. 23.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a smart energy meter (d) a plain wall switch
30. 30.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a wind-up clock (d) an app-controlled bulb
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a smart energy meter (d) a battery torch
35. 35.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a plain wall switch (d) a battery torch
36. 36.What does the cloud server do? (a) stores data online (b) measures the real world (c) acts on a command (d) carries the data
37. 37.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) actuator (d) microcontroller
38. 38.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) sensor (c) actuator (d) microcontroller
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) a Wi-Fi weather station
40. 40.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan

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