Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 818 · 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 comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
3. 3.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
5. 5.What does the cloud server do? (a) measures the real world (b) stores data online (c) shows data to you (d) acts on a command
6. 6.What does the sensor do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi smart plug
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
9. 9.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
10. 10.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
13. 13.Which of these is an IoT device? (a) a fitness band with app (b) a plain table fan (c) a wind-up clock (d) a pencil sharpener
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
15. 15.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) an app-controlled bulb
18. 18.What does the actuator do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a Wi-Fi smart plug
20. 20.🌐 In an IoT system, which part acts on a command? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
21. 21.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
26. 26.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a battery torch (d) a paper calendar
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
28. 28.🔢 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
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
30. 30.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
31. 31.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
32. 32.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
33. 33.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a wind-up clock
38. 38.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
40. 40.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools

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