Review Sheet for Test 1

Review Sheet for Test 2

You are responsible for any concept we covered in the lab or in the homework. Specifically:

Everything that was on the Review Sheet for Test 1

The most general definition of work and how to use it:

W = Fs cos **

The work energy thereom:

Wtot = KE **

How to graphically calculate the work done by a non-constant force, specifically including the force of a spring.

Definition of power: Pavg=(W)/(time) **

Potential Energy, how it is related to work, and how to calculate it for gravity and springs Ugrav = mgh 2 Uspring = ½ kx

Mechanical Energy and when it is (and it not) conserved ME = KE1 + U1 = KE2 + U2 **

Momentum, when it is conserved and how to use that conservation to solve collision problems in one dimension P = mv **

Impulse = Fext t= P (so when there is no Fext, P = 0) **

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.

Completely inelastic collisions, what they mean, what is conserved and not conserved during them v1f = v2f = vf

Center of mass and how it is related to conservation of momentum

COM = ximi/mi Fext = macom

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

Centripetal Acceleration, what causes it, what can change its value 2 acen = v /r **

Torque, how you can change its value, how it is related to force.  = F r sin **

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 **

Newton’s second law in rotational form.  = I 

Rotation position, velocity, acceleration and kinetic energy 2 KErot = ½ I

Angular momentum: L = p r sin (for small, point objects) ** L = I (for rigid objects) **

Conservation of angular momentum and how to apply it.

ext t = L **

Rolling objects. How their rotational and transitional velocities are related.

You are responsible for any concept we covered in homework or in the reading.