Unit 2 Test Formula Sheet PDF

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Second Exam Formula Sheet Notes...

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Formula Sheet for Unit Test 2 Ch 6 Ft = m(vf-vi)

p = mv

Δ pbefore + Δ pafter = 0

m1v1 + m2v2 = m1v1’ + m2v2’

m1v1 + m2v2 = (m1+ m2)v’12 Ch 7

W = Fd P = W/t = Fd/t PE = mgh KE = ½ mv Δ KE + Δ PE = 0, or KE gained = PE lost, results in: mgh = ½ mvf2

2

(The conservation of energy formula also applies in Ch 10, for satellite orbits)

%eff = Work output / Work input or AMA / IMA Wout = Frdr IMA = de / dr

Win = Fede AMA = Fr / Fe Ch 9

2

Fnet = mg g = -10 m/s W = mg = Fgrav = Gm1m2/d2 G = 6.67 x 10-23 Nm2/kg2 g = -9.8 m/s2 (or -10 m/s2) near Earth’s surface Ch 10 (reprises Ch 3 motion formulas, as applied to projectiles) a = Δ v/t

vf = vi + at

vavg = Δ d/t

Δ d = vavgt

2 Δ d = vit + 1/2 at

dfalling from rest = 1/2 gt

horizontal:

Fnet = 0,

vx = const,

ax = 0,

2

dx = vxt, (max range at ttotal) ttotal = tup + tdown vertical:

Fnet = mg,

ay = g,

vf = vi + gt, 2

dy = 1/2gt , (max height at tdown) 2

(tdown ) = 2dy/g !...