S8: FIRST QUARTERLY EVALUATION

TRUE or FALSE:

Our ears can only hear sound between 20 to 20,000 Hz.

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TRUE or FALSE:

The waves of sound is an electromagnetic wave.

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TRUE or FALSE:

The units are hertz for pitch and decibels for loudness.

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TRUE or FALSE:

Light that strikes a barrier or surface may be transmitted, scattered, reflected, or absorbed.

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TRUE or FALSE:

Visible Light waves are the only invisible portion of the electromagnetic spectrum that we can't see.

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TRUE or FALSE:

It was Galileo Galilei who first investigated that sunlight is made up of different color components.

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TRUE or FALSE:

The color white is the absence of all colors.

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TRUE or FALSE:

The wavelengths of visible light ranges from 430 nm Hz (violet) to 750 nm Hz (red).

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TRUE or FALSE:

When comparing mediums of the same phase, sound travels faster in less dense objects.

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TRUE or FALSE:

The frequency of sound waves produced is equal to the vibrations produced.

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