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Light basics — Science Learning Hub ~ Light as particles In 1905 Albert Einstein proposed that light is made of billions of small packets of energy that we now call photons These photons have no mass but each photon has a specific amount of energy that depends on its frequency number of vibrations per second

light Definition Properties Physics Quantum Theory ~ Light from the Sun warms the Earth drives global weather patterns and initiates the lifesustaining process of photosynthesis On the grandest scale light’s interactions with matter have helped shape the structure of the universe Indeed light provides a window on the universe from cosmological to atomic scales Almost all of the information about the rest of the universe reaches Earth in the form of electromagnetic radiation

Light and sight – introduction — Science Learning Hub ~ Learn about the basics of light and how it behaves When blue light red light and yellow light are mixed white light results but when blue Apart from looking directly at a light source

Physics for Kids Light ~ Light is unique in that it behaves like both a particle and a wave Why does light go through some things and not others Depending on the type of matter it comes into contact with light will behave differently Sometimes light will pass directly through the matter like with air or water This type of matter is called transparent

Light science for kids A simple introduction to optics ~ The light that we see it simply the one part of the energy that the Sun makes that our eyes can detect When light travels between two places from the Sun to the Earth or from a flashlight to the sidewalk in front of you on a dark night energy makes a journey between those two points

Introduction to Light Science 7 ~ The main source of light on the earth is the sun Plants are able to prepare their own food using sunlight Some other objects also give out light They are known as luminous objects For example bulbs lamps candles etc are luminous objects While there are some objects that do not give out light They are known as nonluminous objects

LIGHT SCIENCE FOR KIDS Kindergarten Lessons ~ Light science for kids includes teaching about reflection As the children play and explore how light reflects off of juice lids no sharp edges and old CDs and watch how light bounces off the ceiling and walls it will help them understand the concept of reflection

How Light Bulbs Work HowStuffWorks ~ Light Basics Light is a form of energy that can be released by an atom It is made up of many small particlelike packets that have energy and momentum but no mass These particles called light photons are the most basic units of light

L1 WHAT IS LIGHT School of Physics ~ L1 WHAT IS LIGHT OBJECTIVES Aims This chapter is essentially an introduction to the wave theory of light At this stage you should get a basic understanding of the wave model of light which involves the idea of light as a complex superposition of many component waves or elementary waves each with its own wavelength