Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 986 · 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 comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a battery torch
3. 3.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a wind-up clock (d) a smart energy meter
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a smart energy meter (d) a fitness band with app
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
12. 12.🌐 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
13. 13.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) microcontroller (d) sensor
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
19. 19.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
23. 23.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) cloud server (d) sensor
24. 24.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
25. 25.What does the phone app do? (a) measures the real world (b) shows data to you (c) stores data online (d) carries the data
26. 26.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) a plain wall switch (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a wind-up clock
31. 31.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) cloud server (d) sensor
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
33. 33.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi doorbell camera
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
39. 39.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it

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