Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 711 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
4. 4.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) phone app (d) cloud server
5. 5.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
6. 6.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
8. 8.What does the phone app do? (a) reads values, decides (b) stores data online (c) acts on a command (d) shows data to you
9. 9.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
10. 10.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) microcontroller (c) Wi-Fi (d) cloud server
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
13. 13.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
16. 16.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
18. 18.What does the sensor do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
19. 19.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
22. 22.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) actuator (d) cloud server
23. 23.🔢 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
24. 24.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
25. 25.What does the actuator do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
26. 26.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) phone app
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
28. 28.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a Wi-Fi doorbell camera
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
30. 30.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) a smart energy meter
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi weather station
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) a pencil sharpener (d) a battery torch
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a Wi-Fi smart plug (d) a fitness band with app
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
39. 39.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) an app-controlled bulb (d) a wind-up clock

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