Sound is a pressure wave. Objects that "allow" sound to travel through them could be called wave guides.
Opaque objects don't allow light to pass through them while translucent objects slow the passage of light but ultimately allow it to pass through.
It is called conductivity
A materiel that allows an electric charge to pass through it is an conducter (copper, for example)
P-waves are type of elastic wave, also called seismic waves, that can travel through gases (such as sounds), elastic solids and liquids, including the Earth. P-waves can be produced by earthquakes and recorded by seismometers. The name P-wave stands for primary wave, as the P-wave is the fastest among the elastic waves, compared to the S-waves.(Sources Wikipedia). Hope that helps! :D
Transparent materials will always allow light to pass through, translucent materials will allow light to pass through as well but the light rays will be scattered. Opaque materials will not allow any light to pass through.
Objects that let all light through are called transparent objects, like glass windows. Objects that only let some light through are called translucent, like a lamp shade, or a curtain. Objects that don't let any light through are called opaque, like a desk.
all of these
opaque objects
Conductors.
SHADOW
There are some objects through which light can travel, others it cannot. Light is a part of the electromagnetic spectrum and each part has a certain energy level. The energy required to travel through an object varies with the make up of that substance. The property an object has for allowing the passage of electromagnetic radiation to pass is called its transparency. An object may not allow light to pass but allow x-rays to pass because x-rays have more energy than light. There fore human flesh, for instance, is opaque to light but transparent to x-rays. There are other things involved but this is a simplified explanation.
Sound will not travel through a vacuum as it needs a medium which will allow vibrations.
Objects that allow most light to pass through are described as transparent. In contrast, translucent objects allow some light to pass through, but don't let you see objects. Opaque objects allow no light to pass through.
There are 3 types of objects:1.TRANSPARENT OBJECTS:(have no shadow)it is the object that you can see clearly through .EX: water , gas2.SEMI-TRANSPARENT OBJECTS:can be seen through but not clear enough.3.OPAQUE OBJECTS:(have a shadow as light cannot pass through it but reflects)can't be seen through at all.
Opaque objects don't allow light to pass through them while translucent objects slow the passage of light but ultimately allow it to pass through.
Because the light waves travel through its molecules. Alternative answer: Light waves have a dual nature; one electromagnetic and another a photonic wave. These waves travel through air, hitting all kinds of objects. Some of these objects are transparent (glass), which allow the light waves to pass only in the form of photonic wave. After the light wave pass through the object (glass), it obtains back its dual nature.
some that are translucent, for example the napkin.