Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 770 · 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 the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain wall switch
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
4. 4.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
6. 6.What does the actuator do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
8. 8.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
10. 10.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
12. 12.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a pencil sharpener
13. 13.Which of these is an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
14. 14.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
15. 15.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) phone app (d) actuator
16. 16.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a smart energy meter
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
18. 18.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a wind-up clock (d) a plain table fan
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
24. 24.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi doorbell camera
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
26. 26.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
28. 28.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) sensor
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
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) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
36. 36.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
37. 37.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) actuator (d) Wi-Fi
38. 38.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi doorbell camera
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?

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