Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 911 · 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 an IoT device? (a) a wind-up clock (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
2. 2.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
5. 5.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a pencil sharpener (d) a plain wall switch
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
7. 7.🔢 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
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a pencil sharpener
10. 10.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
11. 11.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
12. 12.What does the microcontroller do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
16. 16.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) cloud server (d) microcontroller
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a pencil sharpener
18. 18.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
19. 19.What does the actuator do? (a) measures the real world (b) reads values, decides (c) acts on a command (d) shows data to you
20. 20.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a smart energy meter
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a plain table fan
26. 26.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
27. 27.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) cloud server (d) actuator
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
29. 29.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
30. 30.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi weather station
31. 31.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) microcontroller (d) Wi-Fi
32. 32.🔢 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 board reads it (d) the cloud stores it
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
36. 36.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?

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