diff --git a/.idea/projekttage.iml b/.idea/projekttage.iml
index ca6e323..f3d7bc9 100644
--- a/.idea/projekttage.iml
+++ b/.idea/projekttage.iml
@@ -2,7 +2,7 @@
 <module type="PYTHON_MODULE" version="4">
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="Python 3.7 (Projekttage)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.7" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="TestRunnerService">
diff --git a/Formeln.py b/Formeln.py
index 0277d02..372ac0a 100644
--- a/Formeln.py
+++ b/Formeln.py
@@ -13,7 +13,7 @@ Formeln = [k.Formel('Kraftformel', "F=m*a", i=k.Groesse('F', 'N', False), a=k.Gr
            k.Formel('Spannenergie', i=k.Groesse('Espann','J', False), a=k.Groesse(None, None, True, 0.5),
                     b=k.Groesse('D', 'N/m', False), c=k.Groesse('s', 'm', False), x=konstante_eins, y=konstante_eins,
                     z=k.Groesse(None, None, True, 2)),
-           k.Formel('Potentielle Energie', i=k.Groesse('Epot','J',False),a=k.Groesse('m','kg', False),
+           k.Formel('Potentielle Energie',"Epot=m*g*h", i=k.Groesse('Epot','J',False),a=k.Groesse('m','kg', False),
                     b=k.Groesse(None, None, True, 9.81), c=k.Groesse('h','m',False), z=konstante_eins,
                     y=konstante_eins,x=konstante_eins),
            k.Formel('Kinetische Energie',i=k.Groesse('Ekin','J', False), a=k.Groesse(None, None, True, 0.5),