... Flashcards
the rate at which velocity changes
acceleration
an example of acceleration due to change in speed is
free fall
is a steady change in velocity
constant acceleration
in which the displayed data from straight line parts.
linear graph
accelerated motion is represented by a curved line on a distance time graph
nonlinear graph
A measure of size, distance, and amount of an object
Magnetitude
The overall force acting on an object
net force
Friction that occurs in air or water
air resistance
The force of gravity acting on an object
weight
The combined forces on an object where the net force is greater than zero; the object accelerates
unbalanced force
The combined forces on an object where the net force is zero; there is no motion
balanced force
friction force that acts on an object not moving
Static Friction
force that opposes the direction of motion of an object as it slides over a surface
sliding friction
force that acts on rolling objects (wheels)
rolling friction
opposes the motion of an object through a fluid
fluid friction
sometimes called the law “Inertia” the tendency of an object to resist a change in its motion
newtons 1st law
an acceleration of an object is always in the same direction as the net force.
newtons second law
For every action, there is an equal and opposite reaction
newtons third law
is the maximum velocity (speed) attainable by an object as it falls through a fluid
terminal velocity
strength or energy as an attribute of physical action or movement.
force
a tendency to do nothing or to remain unchanged.
inertia
if no net force acts on a system, then momentum doesn’t change
Law of Conservation of Momentum
every object in the universe attracts other objects
Law of Universal Gravitation
