Search results
Results From The WOW.Com Content Network
In this video segment adapted from Shedding Light on Science, light is described as made up of packets of energy called photons that move from the source of light in a stream at a very fast speed. The video uses two activities to demonstrate that light travels in straight lines.
In this media-rich lesson, students conduct simple experiments to investigate how light travels. They examine the paths that light takes with different materials and observe shadows, reflection, and refraction.
Observe demonstrations of how light travels in straight lines and how it is reflected from different surfaces with this gallery of videos adapted from Shedding Light on Science. Use this resource to develop and use models of light to explain the law of reflection.
Say, We observed light and tested materials, just like scientists. We learned that light can pass through some materials—transparent materials—but not other materials—opaque materials. And with some materials, only some of the light can pass through. We call those materials translucent.
In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration.
affects wavelengths of light and distance between galaxies. Main Takeaways The universe is expanding and has done so since the big bang. As the universe expands, the distance between the galaxies increases. Light from galaxies stretches-the wavelength of light increases-as the universe expands and the galaxies move apart. Type of Activity
This resource can help students visualize the time and spatial scale of Earth’s rotation and orbit around the Sun while also stimulating curiosity and thinking about Earth’s axis and how the planet moves in space.
With the right combination of speed and gravity, satellites can fall around, instead of into, the body that they orbit. In this animated video segment adapted from NASA, learn about how the Moon stays in orbit around Earth.
Use the time-lapse videos in this media gallery to observe the apparent motion of the Sun over a day and the images in the gallery to compare changes in the apparent motion of the Sun across the sky throughout the day.
As this video segment from NOVA illustrates, the inclined plane allowed Galileo to accurately measure the effect of gravity on falling objects and develop a universal law describing this effect.