Power Equations: 9th Grade Physics Help

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Homework Help Overview

The discussion revolves around finding equations related to power in the context of 9th grade physics, specifically when given resistance, voltage, and current. The original poster expresses uncertainty about the various equations that can be used to calculate power.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants mention known equations such as P=IV, I^2R, and V^2/R, while the original poster seeks clarification on different instances of power calculations. There is also a request for additional resources, such as an Ohm's Law chart.

Discussion Status

Participants are sharing equations and resources, with one offering to send a scan of an Ohm's Law chart. There is an ongoing exchange of information, but no consensus has been reached regarding the complete set of equations.

Contextual Notes

The original poster is looking for help with equations as part of their homework, indicating a need for guidance on the topic without providing complete solutions.

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hello, I am in the 9th grade and i have forgoten some equations for Physics. I need to know the equations to find power if given resistance and voltage, current and voltage, etc. I know P=IV but I am not sure on the equations for the different instances. Any help would great.
 
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I know of two others: there's I^2 R, and V^2 / R . I have a little Ohms Law chart somewhere. I could find it and send you a scan of it if you want. I think it has about a dozen of the relationships on it.
 
could u email it to me?
 

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