Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 404 · 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.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
3. 3.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi doorbell camera
4. 4.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
9. 9.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) microcontroller (d) Wi-Fi
10. 10.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi weather station
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
22. 22.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a paper calendar (d) a plain wall switch
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
28. 28.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
29. 29.What does the actuator do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) stores data online
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi smart plug
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain table fan
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
36. 36.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
37. 37.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 wind-up clock
38. 38.What does the cloud server do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) stores data online
39. 39.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi doorbell camera
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a pencil sharpener (d) a fitness band with app

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