Matric Phys Definitions

he length of path travelled

a change in position

the rate of change of distance

the rate of change of position or the rate of displacement

rate of change of velocity

a physical quantity that has both magnitude and direction

a physical quantity that has magnitude only

the single vector (force) which has the same effect as the original vectors (forces) acting together

the gravitational force the Earth exerts on any object on or near its surface

the perpendicular force exerted by a surface on an object in contact with it

the force that opposes the motion of an object and acts parallel to the surface with which the object is in contact

the property of an object that causes it to resist a change in its state of rest or uniform motion

when object A exerts a force on object B, object B simultaneously exerts an oppositely directed force of equal magnitude on object A

the work done per unit positive charge

the rate of flow of charge

Current through a conductor is directly proportional to the potential difference across the conductor at constant temperature

a material’s opposition to the flow of electric current

the product of the displacement and the component of the force parallel to the displacement

the energy an object possesses due to its position relative to a reference point

the energy an object has as a result of the object’s motion

the sum of gravitational potential and kinetic energy at a point

the total energy supplied per coulomb of charge by the cell

the total energy in a system cannot be created nor destroyed; only transformed from one form to another

In the absence of air resistance or any external forces, the mechanical energy of an object is constant