Physical changes can be observed in various forms.

A physical change occurs when a substance changes its physical properties without forming a new substance.

Physically unclonable functions are used for secure authentication.

Physical unclonable functions are widely used in secure authentication systems.

A physically unclonable function is a hardware security primitive that is used to generate unique and unpredictable values.

I bought several physics packages for my research.

The physiological densities of the two populations were significantly different.

Physical laws govern the behavior of matter and energy in the universe.

Physical systems are complex and interconnected.

The physical geographer conducted research on climate patterns and landforms.