Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 23 · 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.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
3. 3.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a pencil sharpener
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a pencil sharpener (d) an app-controlled bulb
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a battery torch
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
11. 11.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
13. 13.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a battery torch (d) a plain wall switch
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
16. 16.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
17. 17.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) actuator (d) cloud server
18. 18.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain wall switch
20. 20.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a plain wall switch (d) a wind-up clock
21. 21.What does the actuator do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
22. 22.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
23. 23.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a pencil sharpener
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
26. 26.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
27. 27.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
29. 29.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
30. 30.What does the sensor do? (a) shows data to you (b) carries the data (c) measures the real world (d) acts on a command
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
38. 38.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a plain table fan (d) a plain wall switch
40. 40.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data

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