Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 387 · 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.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
4. 4.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
6. 6.What does the sensor do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
7. 7.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) microcontroller (d) sensor
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
10. 10.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi doorbell camera
11. 11.What does the cloud server do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
12. 12.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi weather station
14. 14.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) an app-controlled bulb (d) a battery torch
15. 15.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
18. 18.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi weather station
19. 19.🔢 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
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
23. 23.What does the phone app do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
24. 24.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
26. 26.What does the actuator do? (a) reads values, decides (b) carries the data (c) measures the real world (d) acts on a command
27. 27.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) an app-controlled bulb
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
31. 31.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a wind-up clock (d) a smart energy meter
34. 34.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi smart plug
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
37. 37.Which of these is not an IoT device? (a) a paper calendar (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
40. 40.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) phone app (d) actuator

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids