Light Waves
What is a narrow beam of light that travels in a straight line?
Light Ray
Sound wave is a...
Compressional wave
The Law of Reflection
What is the angle of incidence is equal to the angle of reflection
The concave mirror
What are mirrors curve inward and make light rays converge
What is •\the bending of a wave as it passes at an angle from one medium to another?
What is Medium?
Loudness
is the human perception of how much energy a sound wave carries. ( Human hear sounds with frequencies between 3,000 Hz and 4,000 Hz)
The Scattering of rays
What is occurs when light rays traveling in one direction are made to travel in many directions
What are mirrors curve outward and make light rays diverge
The Fundamental frequency
What is the lowest frequency produced by a vibrating object
Particles of light are called
Photons
Decibel Scale (dB)
What is a scale that measures energy carried by sound waves and its intensity? (volume)
The Plane Mirror
What are forms an image that is reversed left to right and seems to be behind the mirror?
The lens
What is a transparent object with at least one curved side that causes light to bend
You hear sound with your ears
What are - the outer ear- sound collector; the middle ear- sound amplifier; the inner ear- sound interpreter
How do light and matter interact
Emission, Absorption, Transmission, Transparent, Reflection, Scattering
Pitch is how high or low it sounds but how can we compare the high and low frequency and wavelength.
Higher pitch = higher frequency= shorter wavelength
Lower pitch= lower frequency= longer wavelength)
The focal point and focal length
What are light rays that travel parallel to the optical axis and strike the mirror are reflected so that they pass through a single point on the optical axis
What is the distance along the optical axis from the center of the mirror to the focal point
What is upright
As air becomes warmer, how does the speed of sound in air change
What is it increases
Opaque is described as...; Translucent is described as...; Transparent is described as...; Transmission is described as...
How can you describe the Doppler Effect
What is the change in frequency that occurs when a source of sound is moving relative to a listener?
A regular reflection and a rough surface
What is produced by a smooth surface such as a mirror? There is a parallel reflection
Rough surface causes light waves to reflect in all directions/diffuse reflection/uneven
The main purpose of the objective lens or concave mirror in a telescope
When tuning a violin, a string is tightened. What happens to a note being played on the string?
What is its pitch is higher