Utah Education Network (UEN)
Utah Open Textbook: 3rd Grade Science
How do we interact with Earth? Scholars learn about the sun, Earth, moon, forces, gravity, and heat sources by reading a text and performing hands-on demonstrations. They also differentiate between living and non-living things using...
Libre Text
Libre Texts: Physics: The Ray Model of Light
How is light visible? Examine this source to understand what light is and how it travels. Answer discussion questions and practice problems to better recognize light rays and know their functions.
Physics Classroom
The Physics Classroom: Light Waves and Color: Two Point Source Interference
Students examine the findings of Thomas Young's light experiment, which showed that an interference pattern results when light from two sources meets up while traveling through the same medium.
Physics Classroom
The Physics Classroom: Light Waves/color: Two Point Source Interference Pattern
Students investigate the underlying causes of two-point source interference pattern. They also discover that the spatial separation between the antinodal and nodal lines in the pattern is related to the wavelength of the waves.
Physics Classroom
The Physics Classroom: Light Waves/ Color: Other Two Point Source Interference
Where can we experience the phenomenon that light taking two paths from two locations to the same point in space can undergo constructive and destructive interference? There are several answers to these questions and they will be...
Physics Classroom
The Physics Classroom: Light Waves and Color: The Path Difference
After looking at a representative two-point source interference pattern with accompanying order numbers, students investigate the rationale behind the numbering system, and develop some mathematical equations that relate the features of...
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Gr Kerr Wavefront Program
A simulation that uses the Kerr metric to show the distribution of light photon trajectories when near a black hole that rotates. Accompanied by explanatory documentation.
CK-12 Foundation
Ck 12: Fourth Grade Science
This customizable digital textbook covers topics related to fourth-grade science. It is Next Generation Science Standards (NGSS) aligned.
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