Kinematics Flashcards
Position
A vector quantity that points from the reference point as the origin
Distance
A scalar quantity and is defined as the length of pathed travelled
Displacement
A vector quantity that is defined as a change in position
Speed
Scalar quantity for the rate of change of distance
+
Velocity
Vector quantity for the rate of change of displacement
+-
Acceleration
(Vector quantity) Rate of change of velocity
Equilibrant vector
The single vector that has the same magnitude as the resuktant but acts in the opposite direction
Resultant vector
The single vector that has the same effect as the original vectors acting together
Equilibrant vectors
The single vector that has the same magnitude as the resultant but acts in the opposite direction
Newtons law of universal gravition
Every particle with a mass in the universe attracts every other particle with a force which is directly proportional to the prouct of the masses and inversely proportional to the square of the distance between their centres
Weight
The gravitational force that Earth exerts on any object on or near its surface
Frictional force
The force that opposes the motion of an object
Frictional force due to a surface
The force that opposes the motion of an object and acts parallel to the surface with which the object is in contact
Newtons 1st law
An object continues in a state of rest or uniform velocity unless it is acted upon by a net or resultant force
Newtons 2nd law
When a net force is applied to an object of mass it accelerates in the direction of the net force. The acceleration is directy proportional to the net force and inversely proportional to the mass.
