Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 424 · 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 of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a fitness band with app
2. 2.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
4. 4.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain wall switch (d) a wind-up clock
5. 5.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
6. 6.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
7. 7.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a plain wall switch (d) a pencil sharpener
8. 8.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a plain table fan (d) a pencil sharpener
9. 9.🌐 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
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
11. 11.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
15. 15.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) sensor
16. 16.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
19. 19.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
22. 22.What does the Wi-Fi link do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
24. 24.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) phone app (c) sensor (d) actuator
25. 25.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a battery torch (d) a fitness band with app
26. 26.What does the actuator do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
27. 27.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
29. 29.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
32. 32.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) stores data online
33. 33.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
35. 35.What does the microcontroller do? (a) carries the data (b) stores data online (c) acts on a command (d) reads values, decides
36. 36.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a smart energy meter
37. 37.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi smart plug (d) a fitness band with app
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?

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