Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 36 · 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 acts on a command? (a) cloud server (b) sensor (c) actuator (d) phone app
2. 2.What does the phone app do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
4. 4.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) measures the real world
5. 5.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) actuator (c) phone app (d) sensor
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
12. 12.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a battery torch (d) a Wi-Fi weather station
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a plain wall switch (d) a paper calendar
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a paper calendar (d) a plain table fan
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
23. 23.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) a Wi-Fi smart plug
24. 24.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a battery torch (d) a paper calendar
25. 25.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) Wi-Fi
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
29. 29.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi smart plug
34. 34.What does the actuator do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you
35. 35.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) an app-controlled bulb
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
40. 40.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) an app-controlled bulb (d) a wind-up clock

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