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Chapter 13. Cool Tech: Smartphones

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What is the purpose of this chapter?

The author wrote “LED converts electrical current into light and the best part is that LED is energy efficient because it only lights up the parts of the screen with colors.”  What does “converts” mean in this quote?

Sabiha wrote “The lens focuses the light on the sensor.”  What does “focuses” mean in this quote?

The author wrote “Battery: Provides energy used to transmit radio signals, create visual displays, and run other components.”  What does “transmit” mean in this quote?

In the same sentence, “Battery: Provides energy used to transmit radio signals, create visual displays, and run other components.”  What does “visual” mean in this quote?

How do LCD screens work?

How many types of displays are discussed in this chapter?

What does a smartphone’s memory do?

What does a smartphone’s battery do?

What does a smartphone’s antenna do?

What does a smartphone’s camera do?

Are there any words or ideas that are still not clear from this chapter?