Overview
This unit is broken down into two different sections:
Work & Energy Momentum & Impulse Each section develops ideas behind the Law of Conservation of Energy or Momentum which plays a critical role in Physics in terms of solving complex problems where parameters such as acceleration and forces in Newton's Laws are not easily known. |
Figures of Importance
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Students coming into this unit are expected to know the following:
Naming a form of energy by a type of force
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e.g., kinetic energy, potential energy, sound energy, thermal energy, etc
For more information, click here. |
Energy [J]
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Ability to do work; a matter contains energy according to its motion and position due to a force; a scalar quantity since the direction of the motion does not affect the energy (Knight, 2008)
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Work [J]
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"the transfer of energy that a force gives to an object when the force moves the object" (Bruni, Dick, Speijer, & Stewart, 2012, p. 164)
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Power[W]:
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the measure of how fast or slow the work is done
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Impulse [N s]
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Elasticity and inelasticity
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These terms explain the state of object after a collision. "Elastic" meaning "bouncing from each other" while "inelastic" meaning "stuck together."
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