Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 34 · 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.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
4. 4.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a pencil sharpener (d) a wind-up clock
5. 5.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) sensor (d) Wi-Fi
7. 7.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a plain table fan (d) a paper calendar
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
9. 9.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
10. 10.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a wind-up clock
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
14. 14.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) phone app (d) cloud server
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
17. 17.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
20. 20.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
21. 21.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a paper calendar (d) a pencil sharpener
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
23. 23.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a paper calendar
24. 24.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a plain wall switch
26. 26.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a paper calendar (d) a Wi-Fi doorbell camera
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
29. 29.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) cloud server (d) actuator
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi smart plug
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
32. 32.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
33. 33.What does the phone app do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
34. 34.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
36. 36.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a paper calendar (d) a smart energy meter
37. 37.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
38. 38.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a battery torch (d) a plain table fan
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
40. 40.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device

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