Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 449 · 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 board reads it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) the cloud stores it
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a wind-up clock
5. 5.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain wall switch (d) a paper calendar
6. 6.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
9. 9.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi weather station
12. 12.What does the actuator do? (a) carries the data (b) acts on a command (c) stores data online (d) shows data to you
13. 13.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
14. 14.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
15. 15.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi weather station
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
17. 17.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
19. 19.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a pencil sharpener (d) a battery torch
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
21. 21.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
23. 23.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
24. 24.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) phone app (d) microcontroller
26. 26.Which of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a plain table fan (d) a paper calendar
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
32. 32.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
33. 33.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a battery torch
34. 34.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a Wi-Fi doorbell camera
35. 35.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
36. 36.🌐 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
37. 37.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a fitness band with app (d) a paper calendar
39. 39.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
40. 40.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi doorbell camera

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