Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 277 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
2. 2.What does the sensor do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
3. 3.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
4. 4.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
5. 5.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
6. 6.What does the actuator do? (a) acts on a command (b) carries the data (c) shows data to you (d) stores data online
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a paper calendar (c) a smart energy meter (d) an app-controlled bulb
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
11. 11.🌐 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
12. 12.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
13. 13.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) cloud server (d) microcontroller
14. 14.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
16. 16.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) actuator (c) sensor (d) phone app
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
18. 18.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
19. 19.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
21. 21.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a plain table fan
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a Wi-Fi weather station (d) a fitness band with app
23. 23.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) microcontroller (d) Wi-Fi
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
25. 25.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a paper calendar (d) a fitness band with app
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
27. 27.What does the microcontroller do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) stores data online
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
29. 29.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) sensor (d) phone app
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) an app-controlled bulb
33. 33.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
35. 35.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a fitness band with app
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
38. 38.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a plain table fan (d) a plain wall switch
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?

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