The term used to describe the speed of an object moving in a definite direction is velocity.
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In uniform motion, the object covers equal distances in equal time intervals. For instance, if an object moves 5 m in each second, it maintains this consistent speed.
The red color in the sky at sunrise and sunset is caused by scattering. As the sun is low on the horizon, sunlight passes through more of the Earth’s atmosphere. Shorter wavelengths (blue and violet) scatter out, leaving the longer ...
In a rainbow, purple is dispersed more. The dispersion of light occurs due to the varying wavelengths of different colors, with shorter wavelengths like purple bending more than longer wavelengths like red. This results in purple being more spread out ...
The stars appear higher in the sky than they actually are due to atmospheric refraction. As starlight enters the Earth’s atmosphere, it bends towards the normal because the atmosphere’s density increases closer to the surface. This bending makes the stars ...