Power: Difference between revisions

Revision as of 17:10, 1 December 2015

Claimed by Aeze3

This topic covers Power.

Power is the rate of doing work or the amount of energy consumed over an interval of time.

When a force is applied over a distance in a unit of time, power is calculated by

[math]\displaystyle{ power = \frac{F \Delta r}{\Delta t} }[/math] where F is force, Δr is displacement and Δt is the duration of time.

It then follows that instantaneous power is

[math]\displaystyle{ power = F\cdot v }[/math] where v is velocity.

How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript

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A certain motor is capable of doing 3000 J of work in 11 s. What is the power output of this motor?

Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.

@@ Line 11: / Line 11: @@
 When a force is applied over a distance in a unit of time, power is calculated by
-:<math>P = \frac{F \Delta r}{\Delta t}</math> where '''F''' is force, '''Δr''' is displacement and '''Δt''' is the duration of time.
+:<math>power = \frac{F \Delta r}{\Delta t}</math> where '''F''' is force, '''Δr''' is displacement and '''Δt''' is the duration of time.
 It then follows that instantaneous power is
-:<math>P = F\cdot v</math> where '''v''' is velocity.
+:<math>power = F\cdot v</math> where '''v''' is velocity.
 ===A Computational Model===