# Shared Flashcard Set

## Details

Physics Comp
2014
29
Physics
Not Applicable
09/14/2013

Term
 Velocity
Definition
 Rate in change in displacement. v=Δx/Δt OR Units are m/s. v=vf-vi
Term
 Speed
Definition
 How fast an object is moving. s=d/Δt Units are m/s.
Term
 Vectors
Definition
 Include magnitude, units, and a direction.
Term
 Scalars
Definition
 Include magnitude and units.
Term
 Motion
Definition
 When position changes relative to a reference point.
Term
 Instantaneous Velocity
Definition
 The velocity over an instant.
Term
 Average Velocity
Definition
 The velocity over a certain time period.
Term
 Position
Definition
 Where something is relative to a reference point. Symbol is x.
Term
 Acceleration
Definition
 Change in velocity over time. a=Δv/Δt Units are m/s/s.
Term
 Reference Point
Definition
 A still object to compare how far/fast another moves.
Term
 Inertia
Definition
 The tendency of an object to remain in its original state of motion.
Term
 Newton's First Law
Definition
 An object in motion will remain in motion unless acted on by an unbalanced force. An object at rest will remain at rest unless acted on by an unbalanced force.
Term
 Newton's Second Law
Definition
 F=MA
Term
 Newton's Third Law
Definition
 For every action there is an equal and opposite reaction.
Term
 Weight/ Gravitational force
Definition
 The force of gravity; Mass times gravity; NOT mass. G=mg
Term
 Acceleration due to Gravity
Definition
 -9.8m/s/s
Term
 Net Force
Definition
Term
 Normal Force
Definition
 The surface; perpendicular to object; doesn't cause acceleration because it cancels out the force of gravity.
Term
 Balanced forces
Definition
 Forces that are not caused by humans; forces which cancel out.
Term
 Applied Forces
Definition
 Forces made by humans/ man-related events
Term
 Tension Force
Definition
 Rope/wire forces
Term
 Spring Force
Definition
 Spring Forces (no, not the season)
Term
 Equalibrium
Definition
 Forces which cancel each other out.
Term
 Friction Force
Definition
 A force cause by two objects rubbing together.
Term
 Force
Definition
 A push or pull. Units are Newtons.
Term
 Action-Reaction Pair
Definition
 Two objects which exert equal forces on each other.
Term
 Mass
Definition
 A measure of matter InertiaForce/Gravity
Term
 Hooke's Law
Definition
 F=kx
Term
 Constant Velocity
Definition
 No change in velocity (no acceleration).
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