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Question #2

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?





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Question #10

What does a smartphone’s antenna do?







Please enter the first three words of a sentence that shows your answers is correct.

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Question #3

What is an early example of electromagnetic waves?





Please enter the first three words of a sentence that shows your answers is correct.

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Chapter 10. Introduction to Electromagnetism and Electromagnetic Waves 

To view the online text for this chapter, click here!

What is the main idea of this chapter?

Sabiha wrote ” Cameras can be designed to look for waves of different lengths.”  What does “designed” mean in this context?

What is an early example of electromagnetic waves?

The author wrote “This observation was important but it did not show the theory that connected electricity and magnetism.”  What does “observation” mean in this context?

The author wrote “This observation was important but it did not show the theory that connected electricity and magnetism.” What does “theory” mean in this context?

Here is the definition of a photon “These waves have a photon. There is no matter in a photon, just energy. These little packets of energy move in waves across the universe, and even across your eyeball right now!” 

Which option best describes a “photon”?

What creates a radio wave?

Why do you think “electromagnetic waves” are called “waves”?

Were there any ideas or any words that were unclear?

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Question #5

The author wrote "This observation was important but it did not show the theory that connected electricity and magnetism." 

What does "theory" mean in this context?





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Question #6

Here is the definition of a photon "These waves have a photon. There is no matter in a photon, just energy. These little packets of energy move in waves across the universe, and even across your eyeball right now!" 

Which option best describes a "photon"?





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Question #2

Sabiha wrote " Cameras can be designed to look for waves of different lengths." 

What does "designed" mean in this context?