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Sound and Light Energy
Terms in this set (20)
a back and forth movement of matter.
the loudness of a sound
how high or low a sound is heard
the number of vibrations per second
the bouncing of light from a surface
materials that do not allow light to pass through an object like a book, chair, wall or floor are examples.
materials that allow only some amount of light to pass through like wax paper or bubble wrap are examples.
a material that allows light to pass through it like glass, water and plastic wrap are examples.
the bending of light
a lens that is thicker at the edges than at the center. It spreads light waves apart.
a lens that is thicker at the center than at the edges and bends light waves to make them come together.
the volume of sound is measured in these units
compression waves move this along the spring as a wave
absorb more sound
a sound that bounces off of a surface
not much is absorbed, so sound bounces off of this surface.
changing the length of string alters the pitch
the length of the string affects how fast they vibrate, so a shorter string vibrates faster.
travels in transverse waves forming an "s" vibration and travels very fast
dark colored objects
absorb the most light
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