Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 970 · 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 is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
2. 2.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
4. 4.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
7. 7.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a plain table fan (d) a wind-up clock
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
11. 11.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) actuator (d) microcontroller
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
16. 16.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain wall switch (d) a battery torch
17. 17.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a plain wall switch (d) a paper calendar
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) a fitness band with app
23. 23.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
24. 24.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain table fan (d) a battery torch
25. 25.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) cloud server (c) actuator (d) microcontroller
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi smart plug
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a battery torch
29. 29.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) sensor (d) cloud server
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
31. 31.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
34. 34.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
38. 38.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a smart energy meter (d) a pencil sharpener
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi

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