# Waves 1

• Created by: mccali13
• Created on: 12-10-18 10:23
Progressive wave
A wave in which the peaks and troughs, or compressions and rarefractions, move through the medium as energy is transfered.
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P-waves
Primary waves- longitudinal waves that travel through the Earth from an earthquake
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S-waves
secondary waves: transverse waves that travel through the Earth from an Earthquake
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Longitudinal wave
A wave in which the medium is displaced in the same line as the direction energy transfer- oscillations of the medium particles are parallel to the direction of the wave travel
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Compressions
A moving region which the medium is denser or has higher pressure that the surrounding medium
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Rarefractions
A moving region which the medium is less dense or has less pressure than the surrounding medium
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Transverse waves
A wave in which the medium is displaced perpendicular to the direction of the energy transfer- the oscillations of the medium particles are perpendicular to the direction of enrgy transfer.
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Amplitude
The maximum displacement from the equilibirum position (can be negative or positive)
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Frequency
The number of wavelengths passing a given point per a unit of time
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Period
The time taken for one complete wavelength to pass a given point.
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Wavelength
The minimum dispalcement between two points oscillating in phase. For example, the distance from one peak to the next or from one compression to the next.
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In phase
Particles oscillating perfectly in time with each other (raechiing their maximum positive displacement at the same time) are in phase
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Antiphase
Particles oscillating completely out of step with each other (one reaches its maximum positive displacement as one reaches its maximum negative displacement) are in antipahse.
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## Other cards in this set

### Card 2

#### Front

Primary waves- longitudinal waves that travel through the Earth from an earthquake

P-waves

### Card 3

#### Front

secondary waves: transverse waves that travel through the Earth from an Earthquake

### Card 4

#### Front

A wave in which the medium is displaced in the same line as the direction energy transfer- oscillations of the medium particles are parallel to the direction of the wave travel

### Card 5

#### Front

A moving region which the medium is denser or has higher pressure that the surrounding medium