Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 920 · 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 the cloud server do? (a) carries the data (b) stores data online (c) acts on a command (d) measures the real world
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a paper calendar
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
5. 5.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
7. 7.🔢 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
8. 8.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a plain table fan
9. 9.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
10. 10.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi smart plug
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
12. 12.What does the actuator do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
13. 13.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
17. 17.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
18. 18.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a pencil sharpener (d) a plain table fan
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
21. 21.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
24. 24.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
29. 29.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) carries the data (d) reads values, decides
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
33. 33.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
35. 35.🌐 In an IoT system, which part acts on a command? (a) phone app (b) cloud server (c) actuator (d) sensor
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
37. 37.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
38. 38.What does the sensor do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) carries the data
39. 39.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?

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