Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 11 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
4. 4.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
6. 6.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
8. 8.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
10. 10.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
11. 11.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a Wi-Fi weather station
12. 12.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a paper calendar
15. 15.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
18. 18.What does the microcontroller do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
21. 21.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
24. 24.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) acts on a command (d) reads values, decides
25. 25.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) an app-controlled bulb (d) a plain table fan
28. 28.What does the actuator do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
31. 31.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
32. 32.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
33. 33.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) an app-controlled bulb
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
36. 36.What does the sensor do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) carries the data
37. 37.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
38. 38.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?

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