Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 484 · 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 is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain wall switch (d) a wind-up clock
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
5. 5.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) sensor (d) microcontroller
6. 6.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
8. 8.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) carries the data (d) shows data to you
9. 9.🏠 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
10. 10.🌐 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
11. 11.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) microcontroller (d) actuator
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
18. 18.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) Wi-Fi (d) microcontroller
19. 19.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) cloud server (d) sensor
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
21. 21.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
22. 22.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a pencil sharpener (d) a plain table fan
23. 23.🌐 In an IoT system, which part carries the data? (a) sensor (b) phone app (c) microcontroller (d) Wi-Fi
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is not an IoT device? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
31. 31.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
32. 32.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
34. 34.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
37. 37.What does the phone app do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
39. 39.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
40. 40.What does the sensor do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online

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