AP Physics Mousetrap Car Project - thecubscientist.com

Plot standards:1. Plots should be titled and numbered.2. Axes descriptors and units should be listed on both the independent and dependent axes.3. See example below.Figure 1 Displacement vs. Time for Mousetrap Car500450400x(t) = 3.2t 2 + 2E-13t + 9E-13 [m]350Displacement [m]3002502001501005000 2 4 6 8 10 12 14Time [s]Point Deductions:Typographical errors ( -2 points for EACH offense ). Hint: Axle is spelled “axle”, not “axel”.Mousetrap Car Projecthttp://thecubscientist.com3

Innovative / Ingenious CriteriaPointsGrading CriteriaExample(All the rules below assume moustrap is used,items below are IN ADDITION to mousetrap)50 - uses 3 or more parts/items for a non-intended use AND Use more of your imagination!these parts come into direct contact with one another andserve a USEFUL purpose(i.e. part/item 1 touches/connects to part/item 2which touches/connects to part/item 3)37.5 - uses 2 parts/items for a non-intended use AND these parts Use your imaginationdirectly come into contact with one another and serve aUSEFUL purpose(i.e. part/item 1 directly touches/connects to part/item 2)25 uses 2 parts/items for a non-intended use Uses a CD as a wheel AND a thread spool as a wheel12.5 uses 1 part/item for a non-intended use Uses a CD as a wheel0 uses NO other parts for a non-intended use - uses a pre-fabricated wheel as a wheel- uses a pre-fabricated gear as a gear- uses a pre-fabricated anything to act as that anything- uses string to pull another itemNote: "part/item" refers to the collective use of an item. That is, if you use a CD for a wheel 4 times,that counts as "1 instance" of usage"Mousetrap Car Projecthttp://thecubscientist.com4

Mickey Mouse (your name goes here)Mousetrap Car ProjectPhase I – Motion and EnergyAP PhysicsMr. Lew31 January 2009Mousetrap Car Projecthttp://thecubscientist.com5

Sample Problem Solution FormatGiven: Displacement vs. time plot and corresponding x vs. t dataFind: a) Average velocity at time interval 1/4 – 3/4 through the motionb) Average acceleration at time interval 1/4 – 3/4 through the motionSolution:1) List equations 2) List variables 3) SolveΔxv = v =Δ tΔ x =Δ t =v= = __[ m/ s]Mousetrap Car Projecthttp://thecubscientist.com6