A force.
If a change in the body causes more change in the same direction, the system is called positive feedback. This feedback loop amplifies the initial change and pushes the system further away from its original state.
stimulus
Refraction phenomenon Typically, the change in wave speed in the material causes the change in direction.
Scattering is an interaction of light with matter that causes light to change its energy, direction of motion, or both. so the plain answer is scattering the particles.
gravity (up to down) friction
An external force is a force that causes a change in an object's motion by pushing or pulling it in a certain direction. This force can accelerate, decelerate, or change the direction of the object's movement.
W-I-N-D
REFRACTION
When a wave bounces off a barrier, it is called reflection. This phenomenon causes the wave to change direction upon impact with the barrier.
The change in speed of light changes the direction.
A change of direction is called a "pivot." It involves shifting focus or strategy to adapt to new circumstances or opportunities.
The direction change on a wave is called reflection. This occurs when a wave encounters a boundary or obstacle and bounces back in the opposite direction.