* Physical quantity: This is the most likely interpretation. A physical quantity is a property of a physical system that can be quantified by measurement. Examples include:
* Scalar quantities: These are quantities that have only magnitude (size). Examples include:
* Mass
* Time
* Temperature
* Energy
* Vector quantities: These are quantities that have both magnitude and direction. Examples include:
* Velocity
* Acceleration
* Force
* Momentum
* Physical unit: This refers to a standard quantity used to measure a physical quantity. Examples include:
* Meter (m) for length
* Second (s) for time
* Kilogram (kg) for mass
* Kelvin (K) for temperature
In summary: "Physics amount" likely means either a physical quantity or a physical unit. To be more specific, provide some context or an example of what you mean.
