Vibration And Waves
What is the big idea of waves
waves transmit energy through space and time.
what is the source of all waves
all sounds originate in the vibrations of material objects
what is the nature of light
scientists now agree that light has a dual nature, part particle and part wave
what happens when you combine any color with its complementary color
every color has some complementary color that when added to it will produce white
what is the law of reflection
the law of reflection states that the angle of incidence and the angle of reflection are equal to each other
what is the source of all waves
the source of all waves is something that vibrates
what media transmit sounds
sounds travels in solids, liquids, and gases.
what are the waves of the electromagnetic spectrum
the electromagnetic spectrum consists of radio waves, microwaves, infrared, light, ultraviolet rays, x-rays, and gamma rays
what determines the color of a transparent object
yellow-green light is the brightest part of sunlight
what happens when a wave reaches a boundary between two media
when a wave reaches a boundary between two media, usually some or all of the wave bounces back into the first medium
what determines the period of the pendulum
the period of the pendulum depends only on the length of a pendulum and the acceleration of gravity.
what is a source of sound vibrations
as a source of sound vibrates, a series of compression and rarefaction travels outward from the source
how does light pass
light passes through materials whose atoms absorb the energy and immediately reemit it as light.
what determines the color of an opaque object
the color of a transparent object is the color of the light it transmit
what kind of images do mirrors produce
plane mirrors produce only virtual images
how does a wave transfer energy
the energy transferred by a wave from a vibrating source to a receiver is carried by a disturbance in a medium.
what determines the speed of sound in a medium
the speed of sound in a material depends on the material's elasticity
what was Michelson's experimental value for the speed of light
Michelson's experimental value for the speed of light was 299,920 km/s, which is usually rounded to 300,000 km/s.
How did Newton make a systematic study of color
By passing a narrow beam of light through a triangle-shaped glass prism, newton showed that sunlight is composed of a mixture of all the colors of the rainbow
what happens when light is incident on a rough surface
when light is incident on a rough surface, it is reflected in many directions
what causes interference patterns
interference patterns occur when waves from different sources arrive at the same point-at the same time.
what is the difference between sound intensity and loudness
sound intensity is objective and is measured by instruments. loudness,on the other hand, is a physiological sensation sensed in the brain.
why does light not pass through opaque materials
in opaque materials, ant coordinated vibrations given by light to the atoms and molecules are turned into random kinetic energy that is, into internal energy
which three visible frequencies combine to form almost any color
you can make almost any color at all by overlapping red, green, and blue light and adjusting the brightness of each color of light.
what causes a wave to bend
when a wave that is traveling at an angle changes its speed upon crossing a boundary between two media it bends