I am supposed to answer these conceptual questions with this labsimulator, but I can never get the simulator to workhttps://phet.colorado.edu/en/simulation/legacy/energy-skate-park

Help please?

Energy State Park Lab Handout

Click on the “Energy State Park Simulation” link to performsimulations in the setup satisfying the given conditions.

Upon opening the simulation, the skate should be alternatingbetween the walls of the skate park with no friction added and withEarth’s gravity. Click on the Show Pie Chart under the EnergyGraphs section.

1. With no friction, will his motion every stop?

1. What principle can be applied to this situation?

1. What type of forces are applied here?(Conservative/Non-conservative)

1. What happens to the skater’s potential energy has he falls downa wall to the valley? What about when he moves up a wall from thevalley?

1. What happens to the skater’s kinetic energy has he falls down awall to the valley? What about when he moves up a wall from thevalley?

1. Will any kinetic energy be transformed into thermal energy? Ifso , why? If not, why?

1. Where does the skater have the maximum potential energy?

1. Where does the skater have the maximum kinetic energy?

Now change the coefficient of friction to half way between Noneand Lots.

1. Are there any non-conservative forces in this simulation? If sowhat force?

1. With friction, will the skater ever stop?

1. Would thermal energy be created with this situation?

Conceptual Questions:

1. What is the formula for kinetic energy?

1. What is the formula for gravitational potential energy?

1. If the 75 kg skater reaches a maximum height of 5 feet, what ishis maximum gravitational potential energy? (Hint: remember toconvert to meters).

1. Is gravitational potential energy a conservative ornon-conservative force? Is friction force a conservative ornon-conservation force?