Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 586 · 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, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
3. 3.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
4. 4.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
5. 5.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) cloud server
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi smart plug (d) a smart energy meter
8. 8.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
10. 10.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a paper calendar (d) a plain wall switch
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
14. 14.What does the sensor do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
15. 15.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
17. 17.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi doorbell camera
18. 18.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
20. 20.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
21. 21.What does the cloud server do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
28. 28.What does the actuator do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
32. 32.🌐 In an IoT system, which part carries the data? (a) phone app (b) cloud server (c) Wi-Fi (d) microcontroller
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
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 app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
40. 40.What does the phone app do? (a) acts on a command (b) measures the real world (c) shows data to you (d) reads values, decides

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