Conclusion When there is a constant unbalanced force applied in the same direction as the motion, speed will and acceleration will . When there is an increasing unbalanced force applied in the same direction as the motion, speed will and acceleration will . When there is a constant unbalanced force applied in the opposite direction as the motion, speed will and acceleration will . When there is an increasing unbalanced force applied in the opposite direction as the motion, speed will and acceleration will .

Explanation:

When there is a constant unbalanced force applied in the same direction as the motion, speed will increase and acceleration will remain constant. When there is an increasing unbalanced force applied in the same direction as the motion, speed will increase and acceleration will increase.

According to newton's 2nd law

F = ma

F ∝ a

meaning when F increases , a increases and vice versa

it is called kinetic energy

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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