Describe what it means to conserve energy. How do you conserve energy? 7/9/2016

1.Explain the law of conservation of energy 2.Fill in the blanks below and to the right 3.Draw a diagram that traces the energy you are currently using to complete this test back to its source. Include arrows indicating the energy flow to you, and the type of energy used at each step.

During the video –Use Cornell note questioning Write 5 questions from the video Answer those questions using notes, video or text After the video –Write 5 key point phrases from the video

Find the PE & KE, what happened to ALL the PE? 7/9/2016 H=25 m M=50k g V=20m /s

Conservation of Energy

Potential EnergyKinetic Energy

It has always been around! –Even before the big bang! Energy CANNOT be created

Energy is never used up… Energy transfers from one object to another Energy CANNOT be destroyed!

Conservation of Energy –Energy is neither created nor destroyed, it merely changes form!

PE transfers to KE & Vice Versa The total amount of mechanical Energy in the diagram below will always be the same. The energy levels of KE & PE change according to height & velocity…

PE transfers to KE & Vice Versa The total amount of mechanical Energy in the diagram below will always be 50,000 j. The energy levels of KE & PE change according to height & velocity…

Find the energy value in the blanks for each scenario… PE=5 0J KE=

Answer all questions –Use complete sentences

Draw & Answer… Each ball has the same mass, and starts from the same height, which will have the highest velocity, and thus KE at the bottom? Explain! 7/9/2016

Due today… –With your group come up with one (1) question you have from or about the homework

Conservation of Energy Lab Hot Wheelin’

Cut & glue the handout into your notebook Purpose… –To measure the energy into & out of a system 1m H Data: –M=50 grams (convert) –H=30 cm (convert) –Distance = 1.0m –Times… T1 -.50s T2 -.43s T3 -.57s

Pick one of the following energy sources and trace back the energy to a source 7/9/2016 Windmill Nuclear Coal Hydro-electric Bio-fuels

The law of conservation of energy states that energy is neither created nor destroyed. If this is true, why didn’t all the Potential Energy transfer to kinetic energy in the car? Where did that energy go? Discuss at least 2 ways you think you could reduce the amount of energy transferred outside the ramp & car system. Relate this experiment to a real life example of potential energy being transferred to kinetic energy? If you were to continue an experiment about energy transfer, what would be your next scientific question?

Assignment ListCons. of Energy - quiz For the test –Pen/pencil –Piece of paper (not from notebook) –calculator dateAssignmentScor eEnergy Conservation of Energy 4/19Pretest 4/19Bill Nye Notes 4/20Cons. Energy Wrksht 4/21Hot Wheelin’ Lab Value Points/16 Score/4

Complete the Test Reflection Table Correct ALL wrong answers on your test Begin test retake procedures