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Light Vocabulary
Light energy vocabulary for Unit 2 on Energy
Term | Definition |
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light energy | energy that allows us to see ojects |
reflection | occurs when light hits and bounces off a smooth, shiny surface without being absorbed |
refraction | the bending of light waves as it moves from one medium to another |
shadow | the area behind an object that is formed when light is blocked by an opaque object. |
transparent | a material that allows light to pass through |
transmit | light rays passing through a material |
translucent | a material that allows some light to pass through and some is absorbed |
opaque | A material that does not allow light to pass through: the material absorbs the light. |
convex lens | A lens shaped like a football, thicker in the center than at the edges. Also known as converging lens, directs the light inward towards one focal point making the object appear larger and clearer. Examples are: magnifying glasses, camera lenses. |
concave lens | A lens that is thinner in the center than at the edges. Also known as diverging lens, directs light outward as it passes through. Examples are car headlights, and a movie projector. |
absorb | when light strikes an object and the energy from the light is transferred to the object |
Sun | The largest source of our light on Earth |
magnify | to cause an image to appear larger than the original with a convex lens |
light spectrum | The small part of the electromagnetic spectrum that we can see that includes red, green, blue, orange, yellow, violet. |