Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 966 · 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 the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
3. 3.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi weather station (d) a smart energy meter
4. 4.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
6. 6.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
8. 8.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) phone app (d) actuator
9. 9.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
11. 11.🔍 Which is the odd one out? (a) a paper calendar (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi doorbell camera
13. 13.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
16. 16.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) actuator (d) Wi-Fi
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a wind-up clock (d) a fitness band with app
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
19. 19.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a fitness band with app
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
21. 21.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
22. 22.What does the cloud server do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
23. 23.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
26. 26.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) phone app (d) cloud server
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
29. 29.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi doorbell camera
30. 30.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
32. 32.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) microcontroller (c) Wi-Fi (d) sensor
33. 33.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
34. 34.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
36. 36.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
39. 39.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it

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