Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 356 · 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.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
3. 3.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
4. 4.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
5. 5.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
7. 7.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) carries the data (d) stores data online
8. 8.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) sensor (d) phone app
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
11. 11.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
13. 13.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi weather station
15. 15.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
17. 17.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a plain table fan (d) a wind-up clock
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
19. 19.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
22. 22.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
23. 23.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
25. 25.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) Wi-Fi (d) microcontroller
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
27. 27.What does the cloud server do? (a) reads values, decides (b) stores data online (c) carries the data (d) shows data to you
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
30. 30.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) by post (d) over Wi-Fi
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) phone app (d) microcontroller
37. 37.What does the phone app do? (a) measures the real world (b) acts on a command (c) carries the data (d) shows data to you
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
40. 40.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) Wi-Fi (d) microcontroller

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