Forces Flashcards
Displacement
A change in position
Speed
The rate of change of distance
Velocity
Rate of change of position
Acceleration
The rate of change of velocity
Vector
A physical quantity that has both magnitude and direction
Scalar
A physical quantity that has magnitude only
Resultant vector
The single vector which has the same effect as the original vectors acting together
Weight
The gravitational force that the earth exerts on any object at or near to its surface
Normal force
The perpendicular force exerted by a surface on an object in which it is in contact
Frictional force
The force that opposes the motion of an object and acts parallel to the surface with which the object is in contact
Static frictional force
The force that opposes the tendency of motion of a stationary object relative to a surface
Kinetic frictional force
The force that opposes the motion of a moving object relative to a surface
Distance
The length of the path travelled
