Physical science analyze the branches of natural science and the study of non living things. Examples of physical sciences are physics, chemistry, geography,meteorology,hydrology, geology, astronomy, astrology and oceanography.
Definition of Physics- Physics is a natural science which involves the study of matter and their manifestation in different natural phenomena.
Physics come from the greek word 'physis' meaning "nature'. Physics is a fundamental science because the other natural sciences like biology, chemistry, geology,astronmomy, geoscience etc deal with systems that use and obey the laws of physics.
Showing posts with label physics. Show all posts
Showing posts with label physics. Show all posts
Thursday, June 3, 2010
Wednesday, December 23, 2009
Light , Reflection and Refraction
Refraction
When a ray of light reach the boundary between two different substances, some light is reflected, and some light is refracted. The semi-cylindrical piece of glass has a higher index of refraction.
Rainbow
Light refraction and reflection
Concave lens - physics experiment
Lens that possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia).
Converging lenses a beginners guide for A level
Lenses
When a ray of light reach the boundary between two different substances, some light is reflected, and some light is refracted. The semi-cylindrical piece of glass has a higher index of refraction.
Rainbow
Light refraction and reflection
Concave lens - physics experiment
Lens that possesses at least one surface that curves inwards. It is a diverging lens, spreading out those light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia).
Converging lenses a beginners guide for A level
Lenses
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