PS3.B: Conservation of Energy and Energy Transfer

Paul Andersen explains how energy is conserved within a system. In both macroscopic and microscopic collisions the amount of energy before the collision is equal to the amount after. He then defines heat as energy transfer between objects with different temperatures. He explains how heat is transferred via conduction, convection and radiation.

Paul Andersen explains how energy is conserved within a system.  In both macroscopic and microscopic collisions the amount of energy before the collision is equal to the amount after.  He then defines heat as energy transfer between objects with different temperatures.  He explains how heat is transferred via conduction, convection and radiation.  A teaching progression K-12 is also included.

CCC2: Cause and Effect

Crosscutting Concept 2: Cause and Effect - Mechanisms and Explanation In this video Paul Andersen explains cause and effect its importance in science and engineering. He starts by addressing the chain of interactions that must be present to show cause and effect. He addresses the assumptions of universality and scale in determining cause and effect.

In this video Paul Andersen explains cause and effect its importance in science and engineering.  He starts by addressing the chain of interactions that must be present to show cause and effect.  He addresses the assumptions of universality and scale in determining cause and effect.  He finished the video with a progression of instruction from K-12.
 

SEP3: Planning and Carrying Out Investigations

Science and Engineering Practice 3: Planning and Carrying Out Investigations Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs. He delineates be investigative and observational science. He demonstrates the formation of a good question the design of an effective investigation.

Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs.  He delineates be investigative and observational science.  He demonstrates the formation of a good question the design of an effective investigation.