waves

AMPLITUDE is the distance from the midpoint to the place of maximum displacement. FREQUENCY is the number of cycles that occur in one second. It is also the inverse of the period. PERIOD is the time it takes for a wave to complete one full cycle. It is also the inverse of frequency.

1. A wavelength is the distance from the peak of a wave to the next peak. The frequency is how often the particles of a wave vibrate. Because the wavelength is a distance, and frequency is a time, when they are multiplied, the velocity of the wave must be found. An example of this relation is a slinky.

Light going through air and after that experiencing water is a case of a light beam changing medium. The speed of the light beam changes when it enters an alternate medium. As a rule the heading of light likewise changes. We say the light twists. when light travels in a vacuum it is at its peak speed 3.0x10^8 m/s.

Light going through air and then through water is a case of a light beam changing medium. The speed of the light beam changes when it enters an alternate medium. As a rule, the heading of light likewise changes. We say the light twists. when light travels in a vacuum it is at its peak speed 3.0x10^8 m/s.

The instantaneous velocity at a point is defined as the limit of this ratio as the time interval is made vanishingly small: (2) Hence, the velocity is given by the slope of the tangent to the distance vs. time curve. If the velocity were constant the slope would be constant, and the curve would be a straight line. This is evidently not the case for a freely falling body, since it is at rest initially but has nonzero velocities at later times. When the velocity of a body varies, the motion is said to be accelerated. The average acceleration over an interval is the quotient of the change of the instantaneous velocity and the time required for that change: where .

The crest of a wave is the point on the medium that exhibits the maximum amount of positive or upward displacement from the rest position, they are the uppermost points of the wave. The trough of a wave is the point on the wave that exhibits the maximum amount of negative or downward displacement from the rest position, it is the lowest position of the wave. There are many different kinds of waves. Two kinds of waves are transverse waves and longitudinal waves. A transverse wave is a wave that has its disturbance perpendicular to its direction of propagation; the particles do not move along with the wave; they simply vibrate up and down about their individual equilibrium positions as the wave passes by.

Wavelength is the distance from one crest of the wave to another. The speed or velocity of sound is 1130 feet/second or 770 miles per hour at room temperature. The frequency of sound is the rate at which wave passes a given point. To find frequency the velocity must be divided by the wavelength. The final characteristic of a sound wave is its amplitude.

Refraction of Light Aim: To find a relationship between the angles of incidence and the angles of refraction by obtaining a set of readings for the angles of incidence and refraction as a light ray passes from air into perspex. Introduction: Refraction is the bending of a wave when it enters a medium where it's speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. The amount of bending depends on the indices of refraction of the two media and is described quantitatively by Snell's Law. (Refer to diagram below) The index of refraction is defined as the speed of light in vacuum divided by the speed of light in the medium.

A transverse wave is when these transverse particles move perpendicular to the motion of the wave. For example if you move the slinky again which ever way the vibrations on the slinky are moving the transverse particles are moving perpendicular to that wave. Sound is also a mechanical wave, this aspect comes from the motion of the wave and the particles moving in that wave. When sound moves in a longitudinal wave there are parts of the wave in which some parts are compressed and other parts are farther apart, these distances in the wave are known as compressions and Morgan 2 rarefactions, rarefactions in a wave consists of molecules with the least amount of force being applied pressure and compressions in a wave consist of molecules with the most amount of force bein... ... middle of paper ... ...s chain reaction continues until the brain recognizes the sound that you are hearing. There are diseases that can prevent sounds from getting to the brain and also nutrients from getting to the brain which cause cell death and makes it harder for the brain to function.

Because the waves are emerging in spherical patterns, the waves begin to intersect with each other and form an interference pattern. Every wave has crests and troughs. A crest can be thought of as the high point of a wave and a trough can be thought of as the low point of a wave. Every wave can be expressed a sin function, that is, it is periodic. These crests and troughs occur at regular intervals in the wave.