Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 669 · 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 not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a pencil sharpener
2. 2.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) a fitness band with app
3. 3.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
4. 4.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) phone app (d) cloud server
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
8. 8.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
10. 10.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
12. 12.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi doorbell camera
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a wind-up clock (d) a battery torch
15. 15.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
16. 16.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
19. 19.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
20. 20.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
21. 21.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
22. 22.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) actuator (d) phone app
23. 23.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a wind-up clock (d) a smart energy meter
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
27. 27.What does the phone app do? (a) stores data online (b) shows data to you (c) reads values, decides (d) measures the real world
28. 28.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
29. 29.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
33. 33.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
34. 34.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi smart plug
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
38. 38.What does the cloud server do? (a) acts on a command (b) measures the real world (c) shows data to you (d) stores data online
39. 39.What does the Wi-Fi link do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?

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