Test 2 Comments.

Object on a level surface comes to rest--Work done by friction.  Speed of object thrown straight up or down. Collision between two objects, total momentum.  Work done by pushing, how fast.  Centripetal motion. 

Down hill into vertical loop, speed at locations.  Force due to track.

Collision, momentums before and after, each object, and kinetic energy (before and after).

Mass goes down ramp, collides with other, and sticks.  Similar to a problem I have posted.

Energy provided by a spring pushing on object.  How fast, spring constant, speed at some position.