The waves are refracted towards the normal (ie towards the line perpendicular to the surface).
When light waves slow down as they travel from one medium to another, such as from air to glass, they do change direction. This change in direction is called refraction and occurs due to the change in speed of the light waves in the new medium.
Electromagnetic waves do not slow down in a vacuum. However, they can change direction when they encounter different mediums, such as transitioning from air to glass. This change in direction is known as refraction.
The waves are refracted towards the normal (ie towards the line perpendicular to the surface).
A longitudinal wave vibrates in the same direction that the wave travels. Examples of longitudinal waves include sound waves and seismic waves.
Parallel to the direction the wave travels.
In transverse waves, the energy travels perpendicular to the direction in which the wave itself is moving. This causes the particles in the medium to move in a direction that is different from the direction of energy propagation. Examples of transverse waves include electromagnetic waves like light and water waves.
Wave that has vibration in a direction that is perpendicular to the motion creating it
This describes a transverse wave. In a transverse wave, the particles of the medium vibrate perpendicular to the direction the wave is moving. Examples include light waves, waves on a string, and electromagnetic waves.
AIR
When waves slow down and change direction, it typically means they are entering a medium with a different density or refractive index. This can lead to the waves bending or refracting as they pass from one medium to another. This phenomenon is known as refraction and is commonly seen when waves pass through water or glass.
Longitudinal waves have movement that is parallel to the direction of the wave. As the wave travels, the particles of the medium vibrate back and forth in the same direction that the wave is moving. Examples of longitudinal waves include sound waves.
A longitudinal wave displaces particles of the medium parallel to the direction in which the wave travels. This means that the oscillation of the particles occurs in the same direction as the wave propagation. Examples of longitudinal waves include sound waves and seismic waves.