# Shared Flashcard Set

## Details

Physics Midterm (ch1-6)
kinematics.
32
Physics
09/30/2010

## Additional Physics Flashcards

Term
 no displacement equation
Definition
 Vf=Vi+at
Term
 no final velocity equation
Definition
 Df=Di+Vit+1/2at2
Term
 no acceleration equation
Definition
 Df=Di+(Vi+Vf/2)t
Term
 no time equation
Definition
 Vf2=Vi2+2a(Df-Di)
Term
 no initial velocity equation
Definition
 Df=Di+Vft-1/2at2
Term
 Acceleration of Gravity
Definition
 -9.8m/s2
Term
 initial v, final v, initial d, final d, acceleration, time
Definition
 Vi(Vo) , Vf, Di(Do), Df, a, t
Term
 average acceleration
Definition
 a=ΔV/Δt
Term
 average velocity
Definition
 v=ΔD(displacement)/Δt
Term
 average speed
Definition
 distance/Δt
Term
 SI units (mass, time, length,)
Definition
 kg, s, m
Term
 Magnitude ---> Components
Definition
 X: Mcos(), Y: Msin()
Term
 Components ---> Magnitude
Definition
 pythag. theory
Term
 Components ---> Angle
Definition
 tan-1 (Vy/Vx)
Term
 current
Definition
 Vws
Term
 attempted route (where you headed)
Definition
 Vbw
Term
 where the boat actually wound up going
Definition
 Vbs
Term
 Vbw +V ws
Definition
 V bs
Term
 horizonal projectile motion
Definition
 Vxi = Vx, Δx = vxi(t)
Term
 vertical projectile motion
Definition
 vy = vyi - gt, Δy = Vyi(t) - 1/2 g t^2
Term
 Newton's first law
Definition
 object at rest will stay at rest, object in motion will stay in motion (innertia / mass)
Term
 Newton's second law
Definition
 F = ma
Term
 Newton's third law
Definition
 all forces have an equal and opposite force (between 2 objects, not N and mg!)
Term
 inclined plane weights
Definition
 Wx = mgsin(), Wy = -mgcos()
Term
 Newton's law of universal gravitation
Definition
 F=G(m1m2/r^2)
Term
 how to find g
Definition
 g=G(m1(big)/r^2)
Term
 Kepler's first law
Definition
 planets move in elliptical orbits around the sun
Term
 Kepler's second law
Definition
 planets go faster when theyre closer (same area in same time)
Term
 Kepler's third law
Definition
 (time of a year)^2 = (distance to sun)^3
Term
 perihelion/aphelion
Definition
 closest/farthest from sun
Term
 orbital velocity (v= little dude orbiting, M= mass of big dude)
Definition
 v = sq.root(GM/r)
Term
 Kepler's third law equation
Definition
 (GMsun/4π^2)T^2 = r^3
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