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• Color-coordinated work & energy.
• Initial work is accounted for.
• Better Model:
• Wall collisions show up as heat.
• Transition from ramp to ground is correct with respect to energies.
• 5 independent equations constraining works & energies are asserted (not emergent)
• Added a button to rezero thermal energy.
• Made measuring tape optional (checkbox)
• Bugfix: Force arrows now appear on initialization.
• Bar graphs:
• Labels beneath.
• Titled graphs.
• Reordered works for symmetr/y.
• Work is on the left, Energy on the right.
• Selectable from the control panel (checkbox)
• When ramp overheats, “Warning: Overheated” appears by the ramp, as well as a reset button.
• Hid some features in an Advanced Panel.
• X & Y force components are striped (feasibility test).

Remaining Features

• Add option to graph Parallel Components of forces
• checkboxes should allow user to show any combination of energy (on graphs)

• Show all grab bag choices at once? (on intro panel.)
• Set initial conditions.
• Old idea: Set object at top of ramp and have it stay while you get ready to release.
• A hook?
• Set infinite friction?
• Water splash to cool off on reset thermal energy button.
• Coordinate views (of force arrows) should look different.
• Try sparse stripes in the direction of the unit vector.
• FBD inside advanced panel?
• Some other object (not a brick wall) at the top of the ramp.
• Add vertical & horizontal axes to bar graphs.
• Set initial conditions:

1.      Angle, Position, Applied force text boxes on left hand side.

2.    Go/Pause/Clear next to the slider (not the energy or work graphs).

• Tab 1: No graphs
• Show all grab bag choices on the control panel.
• Tab 2: Graphs
• Advanced features
• Advanced Graphs
• Coordinate Frames
• FBD
• Friction Control

• Wiggle me on the ramp.
• Wiggle me for applied force.
• Test at lower resolution.
• Audio (for crashes & splashes)
• Performance Enhancement.
• Improve screen layout.
• Start the block at zero.

• Arrows (and labels) should be offset (non-overlapping).
• Especially problematic for small force arrows.
• Arrow text label centering fails for arrows at angles.
• 100% processor while just sitting (graphs visible)
• Zoom on charts doesn’t work.
• Simulation should stop at 20 seconds.
• Graphs don’t clear after GoPauseReset reset button pressed.
• Clear doesn’t clear the bar graphs.
• Reset has no warning box.
• Play should not be selectable until the user has stopped taking data
• (pushed pause in go pause reset).
• Applying a force across the surface boundary should recompute the force arrow (it shows up at the wrong (same old) angle).
• The object ‘sticks’ at the boundary between ramp & ground, causing discontinuity in velocity.
• Minor bugs in playback (man position, etc.)

• Rename or coname Applied Force to Push or Man or Applied (push) or something like that.  I don’t think students will easily make the connection between applied and the push.
• The Total energy bar should be multicolored showing the addition of all other energy as with the springs and masses bar graphs.  I would not suggest this feature for Net Work because of the negative work done by friction.   VS. Both Applied Work and Total energy having the same (solid) color.
• Add a Work done by Normal Force bar (even though it’s always zero)?
• Is the striped component view worth pursuing?