Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 534 · 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 of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
5. 5.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
6. 6.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
9. 9.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a plain wall switch
10. 10.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
13. 13.What does the phone app do? (a) measures the real world (b) carries the data (c) acts on a command (d) shows data to you
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
17. 17.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a smart energy meter (d) a plain table fan
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
20. 20.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a smart energy meter
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
22. 22.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
23. 23.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) an app-controlled bulb
24. 24.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a paper calendar (d) a plain wall switch
25. 25.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
26. 26.What does the sensor do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) stores data online
27. 27.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
29. 29.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
30. 30.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
31. 31.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a paper calendar (d) a wind-up clock
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) phone app (d) microcontroller
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
37. 37.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
38. 38.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
40. 40.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device

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