Wave Behavior Relfection Refraction Diffraction Reflection n n

Wave Behavior Relfection, Refraction, Diffraction.

Reflection n n Reflection occurs when a wave strikes an object and bounces off of it. All types of waves including sound, water, and light waves can be reflected

Reflection n When a wave bounces off a barrier or surface it is said to be reflected. How much of the wave that is reflected depends on the difference in the densities between the two mediums.

Echo n Sometimes when the sound waves hit another object, they reflect off it and come back to you. n Your ears hear the sound again, a few seconds after you first heard your footstep. Reference echolocation

Reflection n n Reflection is when a wave encounters a new medium that acts as a barrier that does not absorb the entire wave’s energy. This causes the wave to return to the original medium. All types of waves can be reflected.

Types of Reflection

Refraction n When a wave passes from one medium to another such as when a light wave passes from air to water it changes speed. n If the wave is traveling at an angle when it passes from one medium to another, it changes direction, or bends, as it changes speed.

Refraction n Refraction is the bending of a wave caused by a change in its speed as it moves from one medium to another.

Sound refraction n n Sound wave will refract if there is a difference in air temperature. The different densities cause the waves to bend.