A level Light Quizzes.
(Light quizzes for students doing, A level, GCE, GCSE, and necta)
In this topic, we are going to look at light in general, a very essential necessity for life. Light allows us to see the surrounding world by distinguishing details, individual colors, movement, brightness. It has a very big impact on a human in terms of the physiology and psyche. But light also has extremely important functions in relation to a lot of biological processes that occur in our body. So we are now going to throw more light on what light is really all about.
Light is a form of electromagnetic radiation with a wavelength which can be detected well by the human eye. It is a small part of the electromagnetic spectrum and radiation given off by stars like the sun for an example. Light usually exists in tiny energy packets forms called photons. Each wave has a wavelength or frequency.
Formation of light
A light source is anything that makes light. There are natural and artificial light sources. Some examples of natural light sources include the Sun, stars and candles. Some examples of artificial light sources include light bulbs, lamp posts and televisions.
Sources of light
The main source of light on Earth is the sun, the sun produces light by a nuclear reaction called fusion. Note that, as atoms of hydrogen combine to form helium, they produce vast amounts of heat and light. Also, the central core of the sun, where all the heat and light are produced, has a temperature of 15 million degrees. Other sources include,
Light is very important topic, which students studying for their A level, GCE and GCSE, are expected to know, it plays a key role in most of their exams. Below are some quizzes that will help test you on your knowledge as far as light is concerned, for more quizzes on physics, click here and don't forget to go to our official website, gcequiz.com for more quizzes on many different subjects.