Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 132 · 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 FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
3. 3.🔢 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
4. 4.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a battery torch
5. 5.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) actuator (d) cloud server
6. 6.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a paper calendar
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
9. 9.What does the cloud server do? (a) carries the data (b) stores data online (c) shows data to you (d) measures the real world
10. 10.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
14. 14.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
15. 15.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) microcontroller (d) sensor
16. 16.What does the phone app do? (a) stores data online (b) carries the data (c) acts on a command (d) shows data to you
17. 17.🔢 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
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
20. 20.Which of these is not an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a fitness band with app
21. 21.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
22. 22.What does the sensor do? (a) reads values, decides (b) carries the data (c) stores data online (d) measures the real world
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
24. 24.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) Wi-Fi (d) phone app
25. 25.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a pencil sharpener (d) a wind-up clock
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
33. 33.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a pencil sharpener (d) a paper calendar
34. 34.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
35. 35.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) an app-controlled bulb (d) a smart energy meter
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
40. 40.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device

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