Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 106 · 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 plain table fan (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
4. 4.What does the actuator do? (a) measures the real world (b) acts on a command (c) stores data online (d) carries the data
5. 5.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
7. 7.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
8. 8.What does the cloud server do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
9. 9.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) Wi-Fi (d) sensor
10. 10.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a pencil sharpener
11. 11.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
12. 12.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a candle in a jar (d) a printed map
13. 13.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
18. 18.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
21. 21.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
27. 27.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) cloud server (d) Wi-Fi
28. 28.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
32. 32.What does the microcontroller do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
33. 33.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
34. 34.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
35. 35.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
40. 40.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device

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