LIGHT Sunlight is a mixture of all colors. When sunlight...

Name: Problem 100, Chapter 2: Prealgebra
Uploaded: 2020-07-19T19:17:27-08:00
Duration: 45 s
Channel: Amy Jiang
Description: LIGHT Sunlight is a mixture of all colors. When sunlight passes through water, the water absorbs different colors at different rates, as shown. a. Use a signed number to represent the depth to which red light penetrates water. b. Green light penetrates 4 times deeper than red light. How deep is this? c. Blue light penetrates 3 times deeper than orange light. How deep is this?

LIGHT Sunlight is a mixture of all colors. When sunlight passes through water, the water absorbs different colors at different rates, as shown. a. Use a signed number to represent the depth to which red light penetrates water. b. Green light penetrates 4 times deeper than red light. How deep is this? c. Blue light penetrates 3 times deeper than orange light. How deep is this?

LIGHT Sunlight is a mixture of all colors. When sunlight passes through water, the water absorbs different colors at different rates, as shown.
a. Use a signed number to represent the depth to which red light penetrates water.
b. Green light penetrates 4 times deeper than red light. How deep is this?
c. Blue light penetrates 3 times deeper than orange light. How deep is this?

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Key Concepts

Signed Numbers

Signed numbers are used to represent quantities that have both magnitude and direction, such as depth measured below a reference point. In contexts where depth is measured downward, a negative value is typically assigned to indicate that position relative to the surface.

Multiplicative Relationships

Multiplicative relationships involve scaling one quantity by a constant factor to determine another related quantity. This concept is used when determining how one depth is a multiple of another, such as calculating that a certain light color penetrates several times deeper than a baseline depth.

Light Absorption in Water

Light absorption in water varies by wavelength, meaning different colors are absorbed at different rates. This leads to differences in penetration depths, with some wavelengths penetrating deeper than others due to the water’s selective absorption of light.

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