Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 860 · 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) by shouting (b) by post (c) through a candle (d) over Wi-Fi
2. 2.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
3. 3.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
5. 5.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔢 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 app shows it (d) the sensor measures
7. 7.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
8. 8.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
9. 9.What does the microcontroller do? (a) carries the data (b) measures the real world (c) reads values, decides (d) stores data online
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the sensor do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
13. 13.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
14. 14.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a pencil sharpener
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
17. 17.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
18. 18.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) acts on a command (d) stores data online
19. 19.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) a Wi-Fi weather station
20. 20.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
23. 23.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a battery torch (d) a Wi-Fi doorbell camera
24. 24.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a pencil sharpener
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
26. 26.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
28. 28.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) cloud server (d) phone app
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi smart plug (d) a plain wall switch
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi weather station (d) a paper calendar
31. 31.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a wind-up clock (d) a pencil sharpener
32. 32.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
35. 35.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) the board reads it
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?

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