Power
We learn how power relates to electrical and mechanical systems. We explore the multiple ways we can express power mathematically by working through an example problem that ties in Newton's second law and kinematic equations to find its solution.
We learn how power relates to electrical and mechanical systems. We explore the multiple ways we can express power mathematically by working through an example problem that ties in Newton's second law and kinematic equations to find its solution.
Learning Objectives
-Define power, work, and energy.
-Define power qualitatively and quantitatively.
-Understand how power can be calculated by looking at work done by an object over time or by finding the force exerted on an object times its velocity.
-Discuss how power relates to electrical as well as mechanical systems.
-Define power, work, and energy.
-Define power qualitatively and quantitatively.
-Understand how power can be calculated by looking at work done by an object over time or by finding the force exerted on an object times its velocity.
-Discuss how power relates to electrical as well as mechanical systems.
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Vocabulary
power (P) - the amount of work done in a given amount of time; the amount of force exerted at a given velocity; SI unit is the watt. work (W) - when a force causes displacement of an object.
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