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What is light? Lesson Plan 1 By the end of this unit the children should: • Know that light is a form of energy. • Be able to identify a range of light sources and light refl ectors. • Understand that light sources emit light. • Know that we are able to see when light enters our eyes.
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- Waves of Light
- Colours of Light
- To Summarise
These different colours of light have different wavelengths and frequencies. Red light has the longest wavelength, and the lowest frequency of the visible spectrum. Violet has the shortest wavelength, and the highest frequency of the visible spectrum.
Mixing coloured materials, such as paint, is an example of subtractive colour mixing. Red paint appears red to us because when white light strikes it, the red pigments reflect the red wavelengths of light and absorball of the wavelengths. This reflected light is what is seen by our eyes. The same is true for all of the other colours. So what about ...
Light travels very fast - at the speed of light in fact!Light travels as waves.Light travels in straight lines.Light is the form of radiant energy that stimulates the organs of sight, having for normal human vision wavelengths ranging from about 3900 to 7700 angstroms and traveling at a speed of about 300 000 km per second.
Light introduces students to the unique characteristics of light and how living things can use it every day. Students will discover some different ways that light can change, such as reflection and refraction.
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Sep 19, 2024 · Explore the science of light energy with kids! Learn about what light is with a simple definition, and everyday examples of light energy. Grab the free printable light worksheets below, and set up these fun and hands on light experiments for kids!
We are going to learn about what light is, where it comes from and how shadows are formed. We are going to complete an investigation into how light behaves with transparent, translucent and opaque objects.
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What is light in physics?
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Where does light come from?
Light is a form of energy. The Sun is a very important source of light energy. Without the energy from the Sun, there would be no plants or animals on Earth’s surface. Besides the Sun, other sources provide light. Burning objects give off light. So do some animals, such as fireflies and certain fish.