Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 719 · 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 Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
3. 3.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) actuator (d) microcontroller
7. 7.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a fitness band with app
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
12. 12.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a pencil sharpener (d) a smart energy meter
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
14. 14.What does the phone app do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
15. 15.What does the actuator do? (a) carries the data (b) measures the real world (c) stores data online (d) acts on a command
16. 16.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
17. 17.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
19. 19.🔢 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
20. 20.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) acts on a command (d) stores data online
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) microcontroller (d) sensor
23. 23.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a fitness band with app
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) an app-controlled bulb (d) a fitness band with app
26. 26.🔢 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 app shows it (d) the sensor measures
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
28. 28.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a pencil sharpener
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a pencil sharpener
30. 30.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
33. 33.🔢 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
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
35. 35.🔢 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
36. 36.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?

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