Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 573 · 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 wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
7. 7.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
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 not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
11. 11.What does the phone app do? (a) reads values, decides (b) stores data online (c) carries the data (d) shows data to you
12. 12.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) phone app
13. 13.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a pencil sharpener
14. 14.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
16. 16.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a battery torch (d) a plain table fan
17. 17.Which of these is an IoT device? (a) a paper calendar (b) a fitness band with app (c) a wind-up clock (d) a pencil sharpener
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
19. 19.What does the cloud server do? (a) carries the data (b) stores data online (c) acts on a command (d) measures the real world
20. 20.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
22. 22.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a smart energy meter (d) a wind-up clock
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
26. 26.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
27. 27.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
29. 29.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
33. 33.What does the sensor do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
34. 34.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a battery torch
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?

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