Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 305 · 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 cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
5. 5.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
8. 8.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
10. 10.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
11. 11.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
14. 14.What does the cloud server do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
16. 16.What does the phone app do? (a) shows data to you (b) carries the data (c) reads values, decides (d) measures the real world
17. 17.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
22. 22.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a fitness band with app
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
26. 26.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) actuator (d) sensor
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain table fan
29. 29.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a paper calendar
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a pencil sharpener (d) a Wi-Fi weather station
32. 32.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi doorbell camera (d) a paper calendar
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
36. 36.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a battery torch (d) a plain wall switch
37. 37.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
38. 38.What does the microcontroller do? (a) carries the data (b) shows data to you (c) reads values, decides (d) stores data online
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
40. 40.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a wind-up clock

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