Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 155 · 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.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by shouting (d) by post
4. 4.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) phone app (d) microcontroller
5. 5.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a paper calendar
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi weather station
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
8. 8.What does the sensor do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
10. 10.🔢 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 sensor measures (d) the app shows it
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a paper calendar
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
15. 15.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) phone app (d) sensor
16. 16.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
17. 17.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a paper calendar
18. 18.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi weather station (d) a battery torch
19. 19.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) phone app (d) cloud server
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a Wi-Fi doorbell camera
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a Wi-Fi weather station
26. 26.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
27. 27.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi weather station
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
31. 31.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
32. 32.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
34. 34.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
35. 35.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a plain wall switch (d) a battery torch
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
39. 39.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?

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