Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 649 · 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.What does the actuator do? (a) reads values, decides (b) carries the data (c) acts on a command (d) stores data online
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain table fan
4. 4.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
5. 5.What does the cloud server do? (a) shows data to you (b) stores data online (c) carries the data (d) acts on a command
6. 6.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
10. 10.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
13. 13.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
17. 17.🔢 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
18. 18.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi weather station
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
21. 21.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) actuator (c) sensor (d) microcontroller
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a wind-up clock (d) a Wi-Fi weather station
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
29. 29.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) actuator (d) cloud server
30. 30.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 Wi-Fi weather station
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
33. 33.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a wind-up clock (d) a fitness band with app
35. 35.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a smart energy meter
36. 36.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 plain wall switch
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a fitness band with app (d) a smart energy meter
38. 38.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
39. 39.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) shows data to you
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device

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