How do you describe the relationship between potential and kinetic energy? S8P2b

Agenda Notes Week of February 1 February 1, 2016Footer text here2 MondayTuesdayWednesdayThursdayFriday PE/KE Vocabulary Start Skateboard Simulation Finish Skateboard Simulation w/Lab Report Rocket LaunchersEnergy Circle MapFinish Energy Circle Map & LAB REPORT DUE HW: Lab Report

Vocabulary Review/Preview February Footer text here3

Warm Up: Review Energy February 1, 2016Footer text here4

Energy Energy exists in many forms. Energy can be moved from one object to another. Energy can be changed from one form to another. Energy cannot be created or destroyed.

What is Always Present But Never Visible? Although energy isn’t visible, you can detect evidence of energy. ENERGY

Law of Conservation of Energy With every transformation, some energy is converted to less useful forms. Energy conversions are not 100% efficient. The energy output for the intended purpose is seldom the same as the energy we put in. 100 J electricity in 95 J heat out 5 J light out

Potential Energy The energy in matter due to its position or the arrangement of its parts

Kinetic Energy Energy of a moving object

Forms of Energy Mechanical Chemical Electrical Heat/Thermal Light/Radiant Nuclear

Mechanical Energy Energy that moves objects from place to place You use mechanical energy when you kick a ball or turn the pedals of a bicycle Other examples include water flowing in a stream, tires rolling down a road and sound waves from your iPod.

Chemical Energy Energy released by a chemical reaction The food you eat contains chemical energy that is released when you digest your meal Wood, coal, gasoline, and natural gas are fuels that contain chemical energy

Electrical Energy Energy that comes from the electrons within atoms It can be generated at a power plant or inside a battery and can power everything from remote-controlled cars to refrigerators Lightning and static electricity are also forms of electrical energy

Heat (Thermal) Energy Energy created by the motion of atoms and molecules that occurs within an object Thermal energy exists when you heat a pot of water on a stove

Nuclear Energy Energy contained in the nucleus of an atom Nuclear energy is released when nuclei are split apart into several pieces, or when they are combined to form a single, larger nucleus

Light (Radiant) Energy Energy that can move through empty space The sun and stars are powerful sources of radiant energy The light given off by light bulbs and campfires are also forms of radiant energy

Energy Conversion All forms of energy can be converted into other forms of energy

Energy Forms These forms of energy do work that end up as motion, light, or heat. Energy is used to power manufacturing, light buildings, propel vehicles, and communicate messages. What else do we use energy for?

Image Resources Microsoft, Inc. (2009). Clip Art. Retrieved March 24, 2009, from ETH – Renewable Energy Carriers (2010). Professorship of Renewable Energy Carriers. Retrieved May 5, 2010, from

Vocabulary Review/Preview February Footer text here20

What is the relationship between KE and elastic PE (EPE)? S8P2b

Skateboard Simulation Pre Assessment: February 3, 2016Footer text here22

Skateboard Simulation Pre Assessment: February 3, 2016Footer text here23

Skateboard Simulation Pre Assessment: February 3, 2016Footer text here24

Skateboard Simulation February 3, 2016Footer text here25

Skateboard Simulation February 3, 2016Footer text here26

Skateboard Simulation Final Assessment: Review your initial answers to the Warm-Up. Edit your responses based on your new understandings. (Use a pen for your new answers.) February 3, 2016Footer text here27

What is the relationship between KE and elastic PE (EPE)? S8P2b

Guided Inquiry February Footer text here29

Guided Inquiry February Footer text here30

Guided Inquiry February Footer text here31

Guided Inquiry February Footer text here32

Group Discussion How does this experiment demonstrate potential and kinetic energy? ______________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________________________________ How did the stretch of the rubber band affect the distance it traveled? ______________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________________________________ How does the amount of stretch in the rubber band affect the amount of PE and KE? ______________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________________________________ How do you think changing the mass of the rocket might impact the outcomes? ______________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________________________________________________________________ EXTENSION: Change the mass of the rocket. Conduct a similar investigation. Record the results of your investigation. Present your findings to the class. February 2, 2016Footer text here33

Lab Report – Due Friday, February 5 Title: A brief concise, yet descriptive title Statement of the Problem: What question(s) are you trying to answer? Hypothesis Make sure this possible solution is a complete sentence Make sure the statement is testable The statement should reference the independent and dependent variables: such as “If the plant group receiving (independent variable i.e. fertilizer) will (dependent variable i.e. produce more fruit) then the plants that did not receive (independent variable i.e. fertilizer) Materials: Make a list of all items used in the lab February 2, 2016Footer text here34

Lab Report – Due Friday, February 5 Procedure: Write a paragraph or a list which explains what you did in the lab. Your procedure should be written so that anyone else can repeat the experiment. Results: This section should include any data tables, observations, or additional notes you make during the lab. All tables, graphs and charts should be labeled appropriately. Conclusions: Accept or reject your hypothesis EXPLAIN why you accepted or rejected your hypothesis using data from the lab. Include a summary of the data – averages, highest, lowest, etc. to help the reader understand your results. List one thing you learned and describe how it applies to a real-life situation. Discuss possible errors that could have occurred in the collection of data (experimental errors) February 2, 2016Footer text here35

Lab Report Format (Option) February Footer text here36

How will you earn your grade? LAB REPORT ITEMSPointsPoints Received PROBLEM 10 HYPOTHESIS (Independent & dependent variables included) 10 MATERIALS & PROCEDURE (All steps clearly stated) 15 OBSERVATIONS AND DATA (Measurement units identified) 20 GRAPHS AND/OR ILLUSTRATION (Title, axes labeled, data points plotted) 20 CONCLUSION (Answers the problem, explains results) 15 NEATNESS 10 TOTAL GRADE 100 February 2, 2016Footer text here37

What is the relationship between KE and elastic PE (EPE)? S8P2b

July 22, 2012Footer text here39