Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 275 · 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) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the board reads it
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) an app-controlled bulb (d) a paper calendar
3. 3.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
5. 5.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
6. 6.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
11. 11.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
14. 14.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
16. 16.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
18. 18.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
21. 21.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a wind-up clock (d) a plain table fan
22. 22.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain table fan
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
24. 24.🔢 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
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi doorbell camera
27. 27.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a paper calendar (d) a pencil sharpener
28. 28.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
29. 29.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
30. 30.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) a Wi-Fi weather station
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
32. 32.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) phone app (d) microcontroller
35. 35.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a battery torch (d) a plain wall switch
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a plain table fan (d) a wind-up clock
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?

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