Difference between revisions of "Cylinder race down a ramp"

Latest revision as of 14:41, 28 August 2015

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PIRA index: 1Q10.40

The size, weight, and mass distribution of a cylinder influences its moment of inertia and determines the speed at which it will roll down a ramp.

Place the two contestants at the top of the track behind the stopper. Lift the stopper to start the race.

Possible match-ups are

1) cylinders have the same mass but one is solid and the other is hollow.

2) cylinders have the same shape but different masses.

3) cylinders have the diameter but one is solid and the other is hollow.

4) cylinders have the same diameter and mass but their mass distribution is different (one central and one around the edge).

incline, plane, ramp, cylinder, race, roll, moment of inertia

@@ Line 5: / Line 5: @@
 ==Description==
-The weight and mass distribution of a cylinder influences its moment of inertia and determines the speed at which it will roll down a ramp.
+The size, weight, and mass distribution of a cylinder influences its moment of inertia and determines the speed at which it will roll down a ramp.
 ==Equipment==
@@ Line 13: / Line 13: @@
 ==Instructions==
 Place the two contestants at the top of the track behind the stopper. Lift the stopper to start the race.
-Possible match-ups are cylinders with the same mass but different circumference, same circumference but different mass distribution, and same circumference but different mass.
+Possible match-ups are
+) cylinders have the same mass but one is solid and the other is hollow.
+) cylinders have the same shape but different masses.
+) cylinders have the diameter but one is solid and the other is hollow.
+) cylinders have the same diameter and mass but their mass distribution is different (one central and one around the edge).
 ==Keywords==
@@ Line 23: / Line 32: @@
 File:1Q10.40_2.JPG|Figure2
 </gallery>
+{{#widget:YouTube|id=zeqMzbZVtTA}}