Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 85 · 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.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
2. 2.What does the actuator do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a pencil sharpener
4. 4.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a battery torch (d) a paper calendar
5. 5.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
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 50 bytes. How many bytes do 90 readings take?
8. 8.Which of these is not an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
9. 9.What does the sensor do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
10. 10.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi weather station
11. 11.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
12. 12.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) Wi-Fi (c) sensor (d) actuator
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a fitness band with app (d) a smart energy meter
14. 14.🌐 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
15. 15.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
16. 16.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
19. 19.🔢 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
20. 20.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a battery torch (d) a pencil sharpener
21. 21.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 90 readings take?
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a paper calendar (d) a battery torch
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
26. 26.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
27. 27.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
35. 35.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain table fan
36. 36.What does the phone app do? (a) shows data to you (b) measures the real world (c) reads values, decides (d) acts on a command
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
39. 39.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it

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