# Shared Flashcard Set

## Details

AP Physics Midterm
n/a
27
Physics
01/24/2012

Term
 Velocity
Definition
 the rate at which the position of an object changes
Term
 Average Velocity
Definition
 deltax/deltat
Term
 Acceleration
Definition
 the rate at which velocity changes
Term
 3 velocity/acceleration formulas
Definition
 [image]
Term
 A ball is thrown straight up in the air. When air resistance is ignored, which of the following is true at the ball's highest point?I. The velocity is zeroII. The acceleration is zeroIII. The acceleration is directed downward
Definition
 I. and III. only
Term
 scalar
Definition
 one number needed to completely quantify it (time, temperature, mass, energy)
Term
 vector
Definition
 needs more than one number to quantify it (three dimensional) ie; velocity
Term
 vertical vector component
Definition
 Asinx
Term
 horizontal vector component
Definition
 Acosx
Term
 inertia
Definition
 the matter stays in a state of rest if it is currently at rest and it stays in a state of constant speed in a straight line if moving
Term
 Newton's First Law
Definition
 an object will stay in motion at constant speed if in motion or will stay at rest if at rest until an object is acted upon
Term
 Normal force
Definition
 the force between two surfaces that acts perpendicular to the surface
Term
 friction force
Definition
 the force exerted between two surfaces that acts parallel to the surface
Term
 static friction
Definition
 when two surfaces experience a sliding stress but don't actually move
Term
 kinetic friction
Definition
 when two surfaces do slide over eachother
Term
 net force
Definition
 netF = ma
Term
 Newton's Third Law
Definition
 every action has an equal and opposite reaction
Term
 centripetal acceleration
Definition
 acceleration directed toward the center
Term
 centripetal force
Definition
 net force acting toward the center of an object moving in a circle
Term
 torque
Definition
 how big the force is, how far from the pivot the force is applied, direction in which the force is applied
Term
 formula for centripetal acceleration
Definition
 a= v^2/R
Term
 Work
Definition
 when a force acts on an object while a displacement occurs
Term
 Power
Definition
 rate at which work is done (watt)
Term
 Capacitors in Parallel
Definition
 [image]
Term
 Capacitors in Series
Definition
 [image]
Term
 Resistors in series
Definition
 [image]
Term
 Resistors in parallel
Definition
 [image]
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