Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 530 · 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.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
2. 2.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a plain table fan
3. 3.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the sensor do? (a) acts on a command (b) carries the data (c) stores data online (d) measures the real world
5. 5.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi weather station
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a wind-up clock (d) an app-controlled bulb
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
9. 9.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
10. 10.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a smart energy meter (d) a pencil sharpener
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
14. 14.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) stores data online (d) acts on a command
15. 15.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a fitness band with app
17. 17.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi smart plug
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a plain table fan (d) a wind-up clock
21. 21.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) an app-controlled bulb (d) a paper calendar
22. 22.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a pencil sharpener (d) a smart energy meter
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
24. 24.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
27. 27.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
28. 28.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the board reads it (d) the sensor measures
32. 32.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a smart energy meter
38. 38.What does the phone app do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) actuator (d) sensor

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