Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 764 · 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 measures the real world? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
2. 2.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
3. 3.What does the sensor do? (a) stores data online (b) measures the real world (c) carries the data (d) reads values, decides
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
6. 6.Which of these is an IoT device? (a) a fitness band with app (b) a paper calendar (c) a battery torch (d) a plain table fan
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
8. 8.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a paper calendar (d) an app-controlled bulb
9. 9.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a wind-up clock (d) a battery torch
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) an app-controlled bulb (d) a fitness band with app
12. 12.What does the phone app do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
15. 15.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) cloud server (d) phone app
16. 16.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
18. 18.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi smart plug (d) a plain wall switch
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
26. 26.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) cloud server (d) microcontroller
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a smart energy meter
28. 28.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi doorbell camera
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a paper calendar (d) a pencil sharpener
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
37. 37.🔢 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
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
40. 40.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?

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