Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 473 · 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 sensor do? (a) measures the real world (b) acts on a command (c) shows data to you (d) stores data online
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a smart energy meter (d) a pencil sharpener
3. 3.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a paper calendar
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi weather station
5. 5.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
6. 6.What does the phone app do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
7. 7.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
8. 8.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) carries the data (d) stores data online
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
11. 11.🌐 In an IoT system, which part measures the real world? (a) sensor (b) actuator (c) cloud server (d) Wi-Fi
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a pencil sharpener
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain wall switch
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
16. 16.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
17. 17.What does the actuator do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
18. 18.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
20. 20.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) microcontroller (d) actuator
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
23. 23.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) phone app (d) sensor
24. 24.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
25. 25.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
27. 27.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
33. 33.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
34. 34.Which of these is not an IoT device? (a) a wind-up clock (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
35. 35.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a plain table fan (d) an app-controlled bulb
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
38. 38.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a Wi-Fi weather station (d) a wind-up clock
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?

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