Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 840 · 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.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a battery torch
2. 2.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
3. 3.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a battery torch
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
5. 5.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
9. 9.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) an app-controlled bulb
10. 10.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) Wi-Fi (d) phone app
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi weather station
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
13. 13.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
14. 14.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) sensor (d) actuator
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
17. 17.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) cloud server
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
23. 23.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a smart energy meter (d) a pencil sharpener
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain table fan (d) a smart energy meter
27. 27.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a wind-up clock (d) a plain wall switch
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
29. 29.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
32. 32.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
33. 33.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) measures the real world
34. 34.What does the sensor do? (a) acts on a command (b) shows data to you (c) stores data online (d) measures the real world
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
36. 36.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
37. 37.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a plain wall switch (d) a plain table fan
38. 38.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?

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