Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 101 · 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.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
2. 2.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) a smart energy meter
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a wind-up clock
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi doorbell camera
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a paper calendar (d) a wind-up clock
7. 7.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain table fan (d) an app-controlled bulb
8. 8.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) cloud server (d) actuator
9. 9.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a smart energy meter
10. 10.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
11. 11.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
15. 15.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a fitness band with app
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
21. 21.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
23. 23.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain table fan
25. 25.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
28. 28.What does the actuator do? (a) reads values, decides (b) carries the data (c) shows data to you (d) acts on a command
29. 29.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
31. 31.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
33. 33.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) an app-controlled bulb
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
36. 36.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) sensor (d) phone app
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it

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