direction
Yes
Convection currents are the vertical circular movements of fluids that transfer due to changes in density.
physical changes are boiling and burning.
Examples: volume, density, thermal conductivity, hardness, compressibility etc.
screw
The position, the velocity, and the acceleration.
Velocity of satellite and hence its linear momentum changes continuously due to the change in the direction of motion in a circular orbit. However, angular momentum is conserved as no external torque acts on the satellite.
ecological balance
the conversion factor merely changes the number in such a way that it fits the new units the physical quantity is not changed
A good example of physical changes is when a quantity of H2O - the compound of chemical elements commonly known as water - is heated, it changes from ice (which is a solid) to water (which is a fluid) to water vapour or steam which is in the form of a gas.
The changes of stat are physical changes because the stat is similar to the physical changes.
You have to tell
The scale on the tool used for measuring the particular physical quantity in question.In many cases the change can be calculated (using the appropriate units) using mathematical equations.
Physical Changes
variable
It changes when the market demand and or market supply changes.
what is marijuana physical changes