```Camille Gales - Edward Coles Elementary School

Potential Energy: How is It Related to Kinetic Energy?Camille Gales                  Edward Coles Elementary School                               8441 S. Yates Boulevard                                       CHICAGO IL 60617                                       (773) 535-6550 Objective(s): This is an integrated primary level math and science experience designed to demonstrate the relationship between potential energy and kinetic energy.  The greater the input of potential energy (altitude of the ramp), greater the output of kinetic energy (distance traveled).  The steeper the ramp the greater the distance an object will travel (roll). Materials Needed:  matchbox toy cars, a ramp with an altitude of 3 centimeters and a length of 28 centimeters, a ramp with an altitude of 6 centimeters and a length of 28 centimeters, a ramp with an altitude of 12 centimeters and a length of 28 centimeters, masking tape, a smooth flat surface, centimeter tapes or meter sticks Strategy: Place the ramps on the floor or other smooth flat surface.  Place the tapes or meter sticks at the end of the ramps.  Place each car at the top of the ramp and release it.  Measure the distance the car travels.  Do three trials for each of the three ramps.  Record the results.     Performance Assessment: Primary level children: develop a chart that shows each trial run for the car (a column for ramp height beside the column for distance traveled), develop a bar graph for each ramp to display the results, explain the relationship between the altitude of the ramp and the distance traveled by the car, accurately state that the unit of measure being used is centimeters.                                   Intermediate and upper level children: average the results of the three trials, interpret the results in terms of the relationship between the slope of the angle of the ramps and the distance traveled, develop charts and graphs to organize and display the data Conclusions:  The cars released from the ramp with the altitude of 12 centimeters should travel the greatest distance.  When the altitude of the ramp is doubled the distance traveled should also double demonstrating that there is a direct relationship between the altitude of the ramp (potential energy) and distance traveled (kinetic energy). References:Physics:Its Methods and Meaning. Alexander Taffel. Allyn and Bacon, 1986. Primary Science Curriculum Guide Chicago Board of Education, 1979. ```