Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 686 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
3. 3.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a pencil sharpener
5. 5.🔢 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
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
7. 7.🔢 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
8. 8.What does the sensor do? (a) measures the real world (b) acts on a command (c) shows data to you (d) reads values, decides
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
11. 11.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
12. 12.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a paper calendar (d) an app-controlled bulb
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi smart plug
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a pencil sharpener
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
16. 16.🌐 In an IoT system, which part shows data to you? (a) actuator (b) phone app (c) sensor (d) microcontroller
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
18. 18.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) carries the data (d) stores data online
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
21. 21.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a fitness band with app
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
23. 23.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) acts on a command (d) reads values, decides
24. 24.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
25. 25.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) microcontroller (d) cloud server
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
27. 27.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
29. 29.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a smart energy meter (d) a plain table fan
30. 30.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
33. 33.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) cloud server (d) sensor
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a plain table fan (d) a wind-up clock
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
37. 37.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) microcontroller (d) actuator
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?

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