2 RollingRollingRollingProblem: Does the height of the ramp affect the distance a car travels?
3 If we roll a toy car down ramps of different RollingRollingRollingHYPOTHESISIf we roll a toy car down ramps of differentheights and measure the distance it rolls, then we think the car on the highest ramp will roll the furthest distance.
4 1 15 HYPOTHESIS The Vote Rolling Rolling 8 reading books ramp 12 reading books ramp115
5 Variables Rolling Rolling Rolling Independent Variable- The element that we changed:The height of the ramp by adding more books.Dependent Variable- The element that was changedby adding more books:The distance the car rolled.
6 Materials Rolling Rolling Rolling Rolling Rolling Rolling 1. Reading books for ramp2. A toy car3. Centimeter tape measureRollingRollingRolling
7 Procedure Rolling Rolling Rolling With eight books build a ramp. Roll car down the ramp.Measure and record distance.Repeat for a total of 5 trials.5. Build a 10 book high ramp and repeat steps 2 – 4.6. Build a 12 book high ramp and repeat steps 2 – 4.
9 See Data Table and Graph RollingRollingRollingResultsUsing our data we collected, with calculators, the total distance of each ramp height, then got an average by dividing the total by the number of trials, five for each height.See Data Table and Graph
11 Data Table Rolling Rolling Rolling 1st Trial 369 cm 531 cm 583 cm Ramp1Ramp 2Ramp31st Trial369 cm531 cm583 cm2nd Trial399 cm512 cm571 cm3rd Trial377 cm546 cm563 cm4th Trial379 cm541 cm595 cm5th Trial391 cm534 cm568 cmAverage383 cm532.8 cm576 cm
14 Bibliography: Rolling Rolling Rolling Com/science/forces/simple machines/This is a movie which defines simple machines and ramps. It also explains whya ramp is useful and how it works easier.Force & Motion, Clint Twist, 2006, Bearport Publishing CompanyThis colorful book discusses force, motion, pushing and pulling. It explainswhy it takes less force to move something down a slope.Force and Motion, 2003, Delta EducationThis book describes force, motion, energy, and work. It gives examples of allsimple machines and pictures of these machines at work in our everyday life.Hands-On Science-Over 40 Fantastic Experiments-Forces and Motion, 2001,Kingfisher Publications.This book increased our knowledge about force and motion. Lots ofactivities about forces and simple machines are included. Check it out!
15 Conclusion Rolling Rolling Rolling We noticed that the more books we added to the ramp, thefurther the car traveled.The majority of the class predicted in the hypothesis that thetwelve book ramp would travel the farthest distance. Thefifteen students who voted for the twelve book ramp werecorrect.A ramp is an inclined plane, a simple machine , a tool that usesforce to make work easier.We believe that the raised height did some of the work andmade it easier for the car to move and move farther.