Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 802 · 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 phone app do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
2. 2.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) phone app (d) microcontroller
3. 3.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
4. 4.What does the cloud server do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
5. 5.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) Wi-Fi (d) sensor
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
7. 7.What does the microcontroller do? (a) stores data online (b) shows data to you (c) reads values, decides (d) carries the data
8. 8.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
9. 9.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
10. 10.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
12. 12.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
17. 17.What does the actuator do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
18. 18.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a fitness band with app (d) an app-controlled bulb
20. 20.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
22. 22.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
25. 25.🔢 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 sensor measures (c) the cloud stores it (d) the app shows it
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
28. 28.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
30. 30.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a smart energy meter
31. 31.🔢 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
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
34. 34.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
35. 35.🔢 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
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) phone app (d) cloud server
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
39. 39.🔢 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 sensor measures (d) the app shows it
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?

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