Sound waves and gamma rays.
p waves
Sound travels through matter as transverse pressure waves.
A mechanical wave, such as a sound wave, can only travel through matter because it requires a medium to propagate. Electromagnetic waves, such as light, can travel through both matter and empty space.
Mechanical waves need some kind of material to transmit through. They involve the shaking and passing of energy through matter. Electromagnetic waves don't need a medium to travel through. Outer space is considered a vaccuum, there is no matter to shake back and forth to create a wave. This is why electromagnetic waves can travel through solids, liquids, and why they travel faster.
sound waves?
Electromagnetic waves, such as light, can travel through both matter and empty space. This is because electromagnetic waves do not require a medium to propagate, unlike mechanical waves such as sound waves which rely on a medium such as air or water.
Primary waves.
Any kind of matter that is not too tenuous. In other words, it won't travel through a vacuum.Any kind of matter that is not too tenuous. In other words, it won't travel through a vacuum.Any kind of matter that is not too tenuous. In other words, it won't travel through a vacuum.Any kind of matter that is not too tenuous. In other words, it won't travel through a vacuum.
S-waves.
Electromagnetic waves, such as light and radio waves, can travel through space because they do not require a medium to propagate. These waves can travel through the vacuum of space and do not need a material substance to carry them.
Electromagnetic waves don't need anything to travel. This kind of waves does not need a medium to move through, therefore they can even travel through outer space.
Longitudinal