PE &amp; KE Conversions

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# PE & KE Conversions - PowerPoint PPT Presentation

PE &amp; KE Conversions. Remember. Potential Energy. Kinetic Energy. When it IS MOVING. Has the POTENTIAL to move but isn’t moving yet. It’s building up energy to move but there is no motion going on yet.

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## PowerPoint Slideshow about ' PE & KE Conversions' - doris-foreman

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Presentation Transcript

### PE & KE Conversions

Remember

Potential Energy

Kinetic Energy

When it IS MOVING

• Has the POTENTIAL to move but isn’t moving yet.
• It’s building up energy to move but there is no motion going on yet
Energy starts as PE (potential energy) because it has the ability to move but isn’t moving yet. It has gravitational energy because once the ball is dropped it falls due to gravity.

Energy is converted to KE (kinetic energy) as the ball moves faster and faster as it falls.

Example #2: Pulley

Example #3: Pendulum

PE PE

½ PE ½ KE ½ KE ½ PE

KE

Roller Coaster
• http://science.howstuffworks.com/engineering/structural/roller-coaster3.htm