Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 403 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
2. 2.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
3. 3.What does the actuator do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) carries the data
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
6. 6.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) stores data online
7. 7.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
9. 9.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) cloud server (d) Wi-Fi
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
11. 11.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) sensor (d) actuator
12. 12.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
15. 15.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a smart energy meter
16. 16.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a fitness band with app
17. 17.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a battery torch
20. 20.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a plain table fan (d) a wind-up clock
21. 21.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a pencil sharpener (d) a plain table fan
22. 22.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
23. 23.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) shows data to you (d) carries the data
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
26. 26.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
29. 29.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a battery torch (d) a plain table fan
30. 30.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a fitness band with app
35. 35.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
36. 36.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) microcontroller (d) cloud server
37. 37.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) actuator
38. 38.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain wall switch
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it

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