Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 558 · 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 Wi-Fi weather station (b) a paper calendar (c) a plain wall switch (d) a plain table fan
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
3. 3.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
4. 4.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
6. 6.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a fitness band with app
7. 7.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
8. 8.What does the actuator do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
9. 9.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a battery torch (d) a smart energy meter
11. 11.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) microcontroller (d) sensor
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi weather station
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
14. 14.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
15. 15.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) acts on a command
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
17. 17.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a plain wall switch
18. 18.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a battery torch
19. 19.🔢 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
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
21. 21.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
22. 22.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a smart energy meter (d) a pencil sharpener
23. 23.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
27. 27.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
30. 30.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
31. 31.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
32. 32.What does the cloud server do? (a) stores data online (b) acts on a command (c) shows data to you (d) measures the real world
33. 33.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
39. 39.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
40. 40.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi doorbell camera

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