It tells us that light only travels in straight lines and cant travel through most objects.
You can tell that sound waves and light waves travel at different speeds during a thunderstorm by observing the delay between seeing lightning and hearing thunder. Light travels much faster than sound, so the lightning is seen almost instantly while the thunder takes longer to reach you. This delay in the arrival of sound waves compared to light waves demonstrates their different speeds of travel.
The shape of a shadow depends on the angle, shape and intensity of the light source. Shadows can be distorted or elongated when light is coming from a low angle, while they may appear sharper with direct overhead light. The size and shape of the object casting the shadow also influence its appearance.
You can't see your shadow in the dark because there is no shadow in the dark. Shadows are caused when something is blocking the light. And if there is no light that can be blocked, there can't be any shadows. Darkness is, in itself, a shadow. You can't distinguish your shadow from the shadow cast by the box you're holding. They just blend together and are impossible to tell apart.
"The refractive index is a measure of how much light bends or refracts when it is passed through a certain medium. The higher the numerical value of the refractive index, the more that light suffers from refraction."
because i have diarhea
Sharp shadow show us that light travels in straight lines and cannot bend around corners.
We use light years to tell us how fast light travels.
Changes in shadow tell us where the source of light is. If you are outside, you only have one shadow because the sun is casting it. But if you have multiple shadows, then there are multiple sources of light to cast the shadows.
A light year is a measure of distance. It is the distance light travels through the vacuum of space in one year's time. This is about 5.86 trillion miles.
No, a shadow cannot tell a story as it is merely a two-dimensional representation of an object blocking light. However, shadows can evoke emotions and create atmosphere in a storytelling context.
A sundial
Yes. If two figures are congruent, then you literally can't tell one from the other.Anything that's true of one is also true of the other.
You can tell that sound waves and light waves travel at different speeds during a thunderstorm by observing the delay between seeing lightning and hearing thunder. Light travels much faster than sound, so the lightning is seen almost instantly while the thunder takes longer to reach you. This delay in the arrival of sound waves compared to light waves demonstrates their different speeds of travel.
A sundial.
It can be used as an IQ test. First, bend down. Farther, so that your head is inches away from the ground. Then, see if you can find the word "gullible". If you can, good job. You're a genius.
Studying light is one part of astronomy. Things like the speed of light, how it travels, the spectrum of light are all things that are used in studying astronomy. Studying light emitted from a star can tell us all sorts of things about it, like how far away it is and how bright it really is.
The 'light year' is the distance that light travels in a year's time. Since it's a unit of distance and not a unit of time, it can't be converted into a number of days, any more than you can tell me how many inches old you are.