waves

Wave def

Waves are a disturbance that moves energy to one place to another.

Medium def

The matter that the waves moves through.

What is a crest

The top of a wave

What is a trough

The bottom of a wave

What is wavelength

The distance from one trough to the next or from one crest to the next

What are the 2 major types of waves

Mechanical and electromagnetic waves

2 types of mechanical waves

Transverse and longitudinal/compressional waves.

What is amplitude in general

The height of the point of rest to the trough or to the crest

Amplitude of a sound wave

Amplitude of a sound wave is volume

electromagnetic wave

A wave that does not need to travel through matter

Frequency in general

The number of waves that pass a point in 1 sec measured in hertz

Frequency of a sound wave

Frequency is the pitch of a sound wave

Electromagnetic wave example

Light waves, microwaves, uv rays, x-rays, radio waves,

Mechanical waves

Waves that need to travel trough matter

If wavelength increases, then the frequency decreases and the opposite is true to.

Rarefaction

an area on the wave where the medium is less dense

Wavelength of compressional wave

distance from one point of a wave to the nearest point just like it (from compression to compression or from rarefaction to rarefaction).

Amplitude of a compressional wave

in a compressional wave, the amplitude depends on the density of the medium in the compressions and rarefactions.

the greater the amplitude, the more energy the wave carries ***if you increase the AMPLITUDE of a compressional wave, the VOLUME gets louder

Reflection

The process by which a wave hits an object and BOUNCES off of it

Absorption

When a wave hits a material and it is not reflected back (instead it gets sucked in)

Transmission

to go through

Label the top the arrow and the three bottom things under the blue lines. It is a compressional/longitudinal wave

Top is wavelength, arrow is amplitude, bottom left is compression, middle is rarefaction and bottom right is compression.

Label the left top, in between the waves, the bottom of the wave, the small gray line in the top middle and the gray lines through out the middle

The top left is the crest, in between the waves are amplitude, on the bottom of the waves is the trough the small gray line in the middle is wavelength and the grey line in the middle is the point of rest