Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 114 · 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.What does the sensor do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
6. 6.🏠 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
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
10. 10.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) cloud server (d) phone app
11. 11.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
12. 12.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) an app-controlled bulb
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
16. 16.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a smart energy meter
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi doorbell camera
19. 19.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a battery torch (d) a plain wall switch
20. 20.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) actuator (d) phone app
21. 21.What does the phone app do? (a) stores data online (b) shows data to you (c) carries the data (d) acts on a command
22. 22.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
27. 27.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a battery torch (d) a Wi-Fi doorbell camera
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
30. 30.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
31. 31.What does the cloud server do? (a) stores data online (b) carries the data (c) acts on a command (d) measures the real world
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
34. 34.What does the microcontroller do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
35. 35.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
36. 36.Which of these is not an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a Wi-Fi weather station (d) an app-controlled bulb
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
38. 38.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a wind-up clock (d) a fitness band with app
40. 40.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a paper calendar (d) a plain table fan

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