The game of pool sounds simple, all one must do is hit the cue ball, towards another ball, and making that ball fall into a pocket. It sounds simple, but how come only a small percentage of people are actually good at it? The people that excel at the game of pool are probably not physically stronger, but you can be sure that they know all about momentum. Momentum is literally mass in motion; it is a vector quantity. Momentum is equal to its velocity multiplied by its mass. The purpose of this lab was to prove that momentum is conserved under all conditions. To prove this, we took data in different conditions, and then we drew vector diagrams that show momentum is conserved.
Materials and Methods:.
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1) The following materials were obtained: a metal ramp, a two marbles, a tilt stand, a C-clamp, masking tape, piece of carbon paper, piece of blank paper, and a meter stick.
2) The ramp was clamped to a counter with a C-clamp.(all the counters were the same height).
3) The tilt stand was pushed way to side, slightly to the side, or not moved depending on the direction assigned to you.
4) The incident marble was dropped without the target marble. The drop point was marked. .
5) The incident marble was dropped with the target marble. The drop point was marked.
6) A piece of blank paper was taped to the ground where the target marble hit. A carbon paper was then put over that.
7) The incident marble was dropped from top of ramp 20 times.
8) Distance was measured between the base of ramp to the estimated center.
9) Distance was measured from the base and center to the estimated center where the incident and the target dropped.
10) Deviation was calculated. .
Results:.
Data Table 1: Target distances/Incidence distances traveled.
Group# Direction of base No collision.
(cm) Target distance x (cm) Target distance y (cm) Incident distance x (cm) Incident distance y (cm).
1 Head on 46.5 43 7 .
2 Head on 45 41.5 1.5 8 7.
3 Way to side 46 31 22 16 12.
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