Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 718 · 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.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
3. 3.🔢 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
4. 4.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a plain wall switch (d) a battery torch
5. 5.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a wind-up clock
6. 6.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the board reads it
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
11. 11.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) actuator (d) microcontroller
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
13. 13.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
17. 17.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a plain table fan
21. 21.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a fitness band with app (d) a plain wall switch
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
25. 25.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) microcontroller (d) actuator
27. 27.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a Wi-Fi weather station (d) a wind-up clock
28. 28.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
30. 30.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a paper calendar (d) a smart energy meter
33. 33.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
36. 36.What does the cloud server do? (a) carries the data (b) stores data online (c) reads values, decides (d) acts on a command
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?

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