Collisions on Momentum: The Law of Conservation of Momentum

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Recommended: Investigative question on conservation of momentum

Contents Page:

Introduction: page 3

Design: page 4-6

Collected Data: page 7-8

Discussion: page 9

Conclusion: page 10

Plagiarism Checker and Declaration: page 11

Bibliography: page 12

Appendix: page 13

Rubric: page 14

Introduction:

The Grade 12 Physical Science learners at Penryn College were tasked with carrying out an experiment to investigate the effect of collisions on momentum. Different mass pieces (500g; 1kg and 1.5kg) were dropped on a moving trolley and the learners observed the velocity of the trolley before the mass pieces were dropped on the trolley and the velocity after the mass pieces were dropped. The velocities were then compared.

Momentum:

Momentum is defined as the product of mass and velocity on a body. It is a vector quantity and is measured in kg.m.s-1 (M.Mann, 2013).

The Law of Conservation of Momentum state that the total linear momentum of an isolated system remains constant. This means that the momentum of two bodies before collision will be equal to the momentum of the two bodies after they have collided and exploded apart. This will only occur if the collision is in a closed system (no other forces act on the objects) (M.Mann, 2013). An example of this is Newton’s Cradle. This is a row of five metal balls suspended by wire on a frame. When the ball at the end (ball one) is pulled and then released to collide with the ball next to it (ball two), the momentum of ball one will not be lost but will be transferred from the third ball to the fourth until it reaches the last ball which will rise up to a height almost identical to the height at which the first ball rose. The fifth ball will then fall back down and collide with the ...

... middle of paper ...

...ect for the 1kg and 1.5kg weights as the momentum before the collision did not equal to the momentum after the collision. This is because of experimental error that prevented the experiment from being an isolated system and thus the Law of Conservation of Momentum could not be executed.

Plagiarism Report and Declaration:

Bibliography:

1. M.Mann. (2013). Momentum and Impulse. In M.Mann, Mind Action Series Physical Sciences 12 Textbook and Workbook (p. 9). Sanlamhof: Allcopy Publishers.

2. Palermo, E. (2013, August 28). How Does Newton's Cradle Work? Retrieved May 17, 2014, from www.livescience.com: m.livescience.com/39271-how-does-newtons-cradle-work.html

Appendix:

Rubric:

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