Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 835 · 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 a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a fitness band with app
4. 4.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
5. 5.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
7. 7.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) microcontroller (d) sensor
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
9. 9.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
10. 10.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
12. 12.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) an app-controlled bulb
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
18. 18.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a wind-up clock
19. 19.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a pencil sharpener (d) a plain wall switch
20. 20.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
24. 24.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
29. 29.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
30. 30.What does the actuator do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) measures the real world
31. 31.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a smart energy meter
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a pencil sharpener
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a battery torch
35. 35.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a smart energy meter (d) a wind-up clock
40. 40.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device

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