Because they are changing mediums.
That's 'refraction'.
Reflection-when light change the direction of motion within same medium. Refraction-change of direction when moving to another medium.
-- 'Velocity' is the rate at which position is changing, and the direction of the change. -- 'Acceleration' is the rate at which velocity is changing, and the direction of the change.
refraction
Force changes either the speed or the direction of motion, or both.
That's 'refraction'.
Refraction phenomenon Typically, the change in wave speed in the material causes the change in direction.
no because you are only burning it and that don't count as chemical change. chemical change is when you are adding a material to another material, then they react between each other and form a new material, but whae you burn the marshmallow you only heat it .
Snell's law is the first law of optics, and also known as the law of refraction. It is a formula used to describe the relation between an angle of incidence and refraction, when referring to light.
Reflection-when light change the direction of motion within same medium. Refraction-change of direction when moving to another medium.
-- 'Velocity' is the rate at which position is changing, and the direction of the change. -- 'Acceleration' is the rate at which velocity is changing, and the direction of the change.
It may change its measurable properties but a simple state change is brought on by an increase or decrease the energy content of the material and does not alter the material from one material to another.
refraction
refraction
Force changes either the speed or the direction of motion, or both.
Waves only change direction when they intersect the other medium at an incident angle of other than 90o
The reason they change direction near shore is because the density of objects increase!