<p> Review Sheet for Test 2</p><p>You are responsible for any concept we covered in the lab or in the homework. Specifically:</p><p>Everything that was on the Review Sheet for Test 1</p><p>The most general definition of work and how to use it:</p><p>W = Fs cos **</p><p>The work energy thereom:</p><p>Wtot = KE **</p><p>How to graphically calculate the work done by a non-constant force, specifically including the force of a spring.</p><p>Definition of power: Pavg=(W)/(time) **</p><p>Potential Energy, how it is related to work, and how to calculate it for gravity and springs Ugrav = mgh 2 Uspring = ½ kx</p><p>Mechanical Energy and when it is (and it not) conserved ME = KE1 + U1 = KE2 + U2 **</p><p>Momentum, when it is conserved and how to use that conservation to solve collision problems in one dimension P = mv **</p><p>Impulse = Fext t= P (so when there is no Fext, P = 0) **</p><p>Elastic Collisions, what they mean, what is conserved and not conserved during them. How to use the formulas for elastic collisions where one object is originally stationary.</p><p>Completely inelastic collisions, what they mean, what is conserved and not conserved during them v1f = v2f = vf </p><p>Center of mass and how it is related to conservation of momentum</p><p>COM = ximi/mi Fext = macom</p><p>Rotation kinematic variables and how they are related to linear kinematic variables. (e.g. =s/r, r = v, etc) All the rotational kinematic equations and how to use them. 2 (e.g.  = 0 + 0t1/2t etc</p><p>Centripetal Acceleration, what causes it, what can change its value 2 acen = v /r **</p><p>Torque, how you can change its value, how it is related to force.  = F r sin **</p><p>Moment of inertia, what it means, what can change its value, how to calculate it for small objects, how to add the values for larger objects. I = r2m **</p><p>Newton’s second law in rotational form.  = I </p><p>Rotation position, velocity, acceleration and kinetic energy 2 KErot = ½ I</p><p>Angular momentum: L = p r sin (for small, point objects) ** L = I (for rigid objects) **</p><p>Conservation of angular momentum and how to apply it.</p><p>ext t = L **</p><p>Rolling objects. How their rotational and transitional velocities are related.</p><p>You are responsible for any concept we covered in homework or in the reading.</p>