A disturbance that transfers energy without transferring matter is called a:
What is a WAVE?
The energy of a wave is proportional to the square of THIS wave attribute.
What is AMPLITUDE?
Reflection of a wave off a surface causes the wave to do THIS.
What is CHANGE DIRECTION?
Any surface that reflects light and forms an image is called THIS.
What is a MIRROR?
300,000 kilometers per second, where no mechanical wave has gone before.
What is the SPEED OF LIGHT in a VACUUM?
Be it solid, liquid or gas, a mechanical wave requires THIS to travel through.
What is a MEDIUM?
The energy produced by SOUND waves is transferred THIS WAY in relation to its disturbance.
What is PARALLEL?
The transfer of energy by a wave to the medium through which it travels is THIS.
What is ABSORPTION?
A reflective surface that curves inward is one of these:
What is a CONCAVE MIRROR?
This happens to the speed of light when transmitted through different media in a straight path.
What is SLOWS DOWN?
THIS property of a mechanical wave is measured in hertz, the number of times the cycle repeats each second.
What is the FREQUENCY?
Measured in decibels, THIS is how you perceive the intensity of a sound wave.
What is LOUDNESS?
According to the Law of Reflection, the angle of reflection is equal to THIS when measured from the Normal.
What is the ANGLE OF INCIDENCE?
The distance along the optical axis from the mirror surface to the point where reflected rays converge (or would converge) is called THIS:
What is the FOCAL LENGTH?
The change in direction of a ray of light as it moves at an angle from one medium to another is called THIS:
What is REFRACTION?
A distance measured from adjacent crests or troughs in a transverse wave.
What is the WAVELENGTH?
"Do-Re-Mi" THIS is how we perceive the high and low notes in musical scales.
What is PITCH?
The change in direction of a wave when it travels by the edge of an object or through an opening is called THIS.
What is DIFFRACTION?
When rays parallel to the optical axis strike a convex mirror, the reflected rays do THIS.
What is DIVERGE?
A numerical value that indicates how much a medium can change the direction of light as it passes through:
What is the INDEX OF REFRACTION?
The energy produced by THIS type of mechanical wave is transferred perpendicularly to the disturbance.
What is a TRANSVERSE wave?
Sound waves travel fastest in THIS medium. Why?
What is a SOLID? Because the particles are closest together.
In Regular Reflection, a clear image is produced from a smooth surface when THESE are viewed parallel to each other.
What are REFLECTED RAYS?
Convex mirrors and flat mirrors always produce these:
What are VIRTUAL IMAGES?
An incident ray of light approaching a pane of glass at an angle bends towards THIS as it is transmitted through.
What is the NORMAL?