Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 421 · 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 measures the real world? (a) phone app (b) actuator (c) cloud server (d) sensor
2. 2.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) an app-controlled bulb
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a smart energy meter (d) a pencil sharpener
4. 4.🔍 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
5. 5.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
6. 6.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 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
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
9. 9.What does the cloud server do? (a) measures the real world (b) acts on a command (c) stores data online (d) carries the data
10. 10.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) sensor (d) microcontroller
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
12. 12.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
13. 13.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) sensor
14. 14.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) an app-controlled bulb
15. 15.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
16. 16.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the sensor do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 180 readings take?
20. 20.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) a smart energy meter
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
23. 23.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
25. 25.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
27. 27.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
28. 28.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) microcontroller (d) actuator
29. 29.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) actuator (d) Wi-Fi
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
31. 31.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
32. 32.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
33. 33.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a plain wall switch (d) a wind-up clock
34. 34.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
35. 35.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
36. 36.What does the actuator do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?

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