Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 989 · 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.🌐 In an IoT system, which part measures the real world? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
2. 2.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) cloud server (c) sensor (d) microcontroller
3. 3.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi smart plug
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
7. 7.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
8. 8.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 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 app shows it (c) the sensor measures (d) the board reads it
11. 11.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
13. 13.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
15. 15.What does the actuator do? (a) carries the data (b) acts on a command (c) reads values, decides (d) stores data online
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
18. 18.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
21. 21.What does the phone app do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
22. 22.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a wind-up clock (d) a plain wall switch
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
24. 24.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain table fan
28. 28.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
30. 30.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
31. 31.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller
33. 33.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
34. 34.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) cloud server (d) microcontroller
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi smart plug
38. 38.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device

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