Energy Chains & Diagrams

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Presentation transcript:

Energy Chains & Diagrams Energy Transformations Energy Chains & Diagrams

Energy Transfers Energy transfer is the passing of energy from one object to another

Energy Transformations Energy transformation is the changing of energy from one form of energy to another form of energy.

Transfers & Transformations

Energy Chains Shows how energy is transferred from one object to another and transformed from one type to another in a given scenario.

Energy Diagrams illustrate the flow of energy in a system show the flow of energy in a small piece of an energy chain more quantitative

Energy Diagrams: skidding car example

Using Font Size The size of the font can signal the relative amount of energy in a specific form and how it changes over time.

Using Bar Graphs Each bar represents a form of energy The height of the bar signals the amount of energy at that time. In some cases a standard bar graph is used, but a composite bar graph can be used to illustrate the flow of energy. Composite bar graphs show that total energy remains the same because one bar is divided up into the different types of energy.

Standard Bar Graph

Composite Bar Graph

Using Circle Graphs Each form of energy is a represented by a portion of the circle. Multiple circle graphs can illustrate how the amount of energy in each form changes over time.

Circle Graph (note the intervals)

Energy Skate Park Simulation – Phet simulation (you can Google it) make changes and see how they affect the energy, watch the graphs changes as the skater moves.

Constructing Energy Diagrams Construct Energy Diagrams for a falling ball from 100 cm. Choose 2 of the different types of energy diagrams. See following slides for examples on how to set them up

Energy Diagram using Font Size changes Total ME KE GPE 100cm 75 cm 50 cm 25 cm 0 cm

Energy Diagram using a Bar Graph 100 cm 75 cm 50 cm 25 cm 0 cm GPE KE

Energy Diagram using a Composite Bar Graph 100 cm 75 cm 50 cm 25 cm 0 cm GPE KE

Energy Diagram using a Circle Graph 100 cm 75 cm 50 cm 25 cm 0 cm GPE KE