Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 146 · 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) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
2. 2.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
3. 3.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
4. 4.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
5. 5.What does the actuator do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
7. 7.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a wind-up clock
8. 8.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain wall switch (d) a wind-up clock
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
12. 12.What does the sensor do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
13. 13.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
15. 15.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
18. 18.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
22. 22.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a paper calendar (d) an app-controlled bulb
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
25. 25.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
26. 26.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) carries the data
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
30. 30.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
34. 34.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
40. 40.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a battery torch (d) a fitness band with app

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