GPE: Formula
GPE (J) = m x g x h
(Mass, gravity-9.8, height
 As an object rises it’s GPE increases
 As an object falls it’s GPE decreases
Kinetic Energy

 Kinetic energy depends on:
 Mass
 Speed
 An object at rest has:
 No thermal energy
 No KE
 Formula
KE (J) = ½mv2
(mass, velocity)
 Potential Errors
 Changing more than one variable
 Consistent measurements from the same point on the rod
 Human error-lack of consistency
 Results
 Increasing the height and mass cause the nail to move further into the block
Energy Transfer and Transformation
 Energy Transfer-energy moving from one place to another
 Ex: rod to the nail from activity 54
 Energy Transformation-energy changing types
Ex: roller coaster
Changing GPE to KE
 GPE and KE can change into one another
 Example
 As an object falls it loses GPE and gains KE
 Friction-rubbing of objects together
Law of Conservation of Energy
 Energy isn’t created or destroyed, it transforms from 1 form to another
Heat and Temperature
 Heat- Movement of thermal energy from hot to cold
 Temperature-measure of the average kinetic energy
Thermal Energy
Formula
Change in THe = mc T
(mass) x (specific heat) x Change in Temp. (Final- initial)

 Potential Errors
 Lack of consistent shaking speed and distance
 Lack of consistent vial hold or temperature reading location
 Results
 Kinetic energy and increase of temperature are related

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