Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 941 · 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.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) phone app (d) Wi-Fi
2. 2.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
3. 3.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
4. 4.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
5. 5.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi weather station
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
8. 8.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a wind-up clock
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain table fan (d) a fitness band with app
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
14. 14.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
15. 15.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) an app-controlled bulb (d) a plain table fan
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a paper calendar
18. 18.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) actuator (d) cloud server
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
20. 20.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
21. 21.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
22. 22.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi smart plug (c) a paper calendar (d) a battery torch
23. 23.What does the sensor do? (a) shows data to you (b) stores data online (c) reads values, decides (d) measures the real world
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
28. 28.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
32. 32.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a wind-up clock (d) an app-controlled bulb
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi smart plug
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
36. 36.What does the cloud server do? (a) carries the data (b) shows data to you (c) stores data online (d) acts on a command
37. 37.Which of these is an IoT device? (a) a battery torch (b) an app-controlled bulb (c) a plain table fan (d) a wind-up clock
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
39. 39.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a battery torch
40. 40.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller

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