Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 80 · 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 is the LAST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
2. 2.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
3. 3.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi weather station
4. 4.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a battery torch (d) a plain wall switch
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
6. 6.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a fitness band with app
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a battery torch
10. 10.What does the phone app do? (a) acts on a command (b) reads values, decides (c) stores data online (d) shows data to you
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
12. 12.What does the actuator do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
14. 14.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
16. 16.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi doorbell camera
21. 21.What does the cloud server do? (a) stores data online (b) reads values, decides (c) carries the data (d) acts on a command
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
24. 24.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
28. 28.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi smart plug (d) a smart energy meter
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
31. 31.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a fitness band with app
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) an app-controlled bulb (d) a fitness band with app
35. 35.🌐 In an IoT system, which part stores data online? (a) cloud server (b) sensor (c) phone app (d) actuator
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
37. 37.🔢 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
38. 38.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
40. 40.What does the sensor do? (a) measures the real world (b) reads values, decides (c) carries the data (d) stores data online

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