Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 68 · 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) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
2. 2.What does the cloud server do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a plain table fan (d) a battery torch
4. 4.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
6. 6.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
11. 11.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) actuator (d) phone app
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan
14. 14.Which of these is an IoT device? (a) a fitness band with app (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
15. 15.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
16. 16.🔢 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 cloud stores it (c) the app shows it (d) the sensor measures
17. 17.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi weather station
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
21. 21.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi weather station
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
25. 25.What does the phone app do? (a) carries the data (b) acts on a command (c) shows data to you (d) stores data online
26. 26.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a plain wall switch (d) a smart energy meter
27. 27.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a pencil sharpener
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
31. 31.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
32. 32.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
34. 34.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
36. 36.🌐 In an IoT system, which part stores data online? (a) sensor (b) actuator (c) cloud server (d) microcontroller
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
39. 39.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
40. 40.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station

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