2015 #3 Free Response Question - AP Physics 1 - Exam Solution

The video tutorial covers a physics problem involving a block and spring system. Initially, the block compresses a spring and moves on a frictionless surface, converting potential energy to kinetic energy. When encountering friction, energy is lost as heat and sound. The tutorial explains graphing energy changes and the effects of increased spring compression on energy and distance. Mathematical reasoning is used to predict outcomes and correct misconceptions.

How does the conservation of mechanical energy change when the block encounters friction?

Explain why the student’s reasoning about the stopping distance being double is incorrect.

What role does the spring constant play in determining the potential energy stored in the spring?

What mathematical relationships can be derived to express the new final position of the block after the spring is compressed twice as much?