When milk is churned vigorously, why does cream separate from it?
When milk is churned vigorously, cream separates from it due to centrifugal force. Centrifugal force acts outward from the center of rotation, causing denser milk particles to move towards the outer edges of the container, while lighter cream particles move towards the center, leading to the separation of cream from milk.
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When milk is churned vigorously, cream separates from it due to centrifugal force; option [A]. Centrifugal force is an apparent force that acts outward from the center of rotation. As the milk is churned, the container’s rotation generates centrifugal force, causing denser milk particles to move towards the outer edges while lighter cream particles move towards the center. This separation occurs because centrifugal force overcomes the gravitational force acting on the milk and cream particles. The denser milk particles experience a stronger outward force, pushing them towards the container’s edges, while the lighter cream particles move towards the center due to their lower density. This results in a distinct separation between the cream and milk components. Centrifugal force is essential in various separation processes, including cream separation in milk churning, because it facilitates the segregation of components based on their density differences. Therefore, option A, centrifugal force, accurately explains why cream separates from milk when churned vigorously.