# ALEX Lesson Plan

## Toy Cars and Newton's Second Law

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This lesson provided by:
 Author: Brian Sauls System: Albertville City School: Albertville Middle School The event this resource created for: ASTA General Lesson Information
 Lesson Plan ID: 34517 Title: Toy Cars and Newton's Second Law Overview/Annotation: Students will conduct an experiment to determine the effect of mass on the distance a toy car will roll. Students will calculate the effect that mass has on the acceleration of the car (the distance the car will roll). Students will also make a prediction of how far the car will roll if more mass is added. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.
Associated Standards and Objectives
Content Standard(s):
 Science SC2015 (2015) Grade: 8 Physical Science 9 ) Use Newton's second law to demonstrate and explain how changes in an object's motion depend on the sum of the external forces on the object and the mass of the object (e.g., billiard balls moving when hit with a cue stick). NAEP Framework NAEP Statement:: P8.16a: Forces have magnitude and direction. NAEP Statement:: P8.16b: Forces can be added. NAEP Statement:: P8.16c: The net force on an object is the sum of all the forces acting on the object. NAEP Statement:: P8.16d: A nonzero net force on an object changes the object's motion; that is, the object's speed and/or direction of motion changes. NAEP Statement:: P8.16e: A net force of zero on an object does not change the object's motion; that is, the object remains at rest or continues to move at a constant speed in a straight line. Unpacked Content Scientific And Engineering Practices:Constructing Explanations and Designing SolutionsCrosscutting Concepts: Stability and ChangeDisciplinary Core Idea: Motion and Stability: Forces and InteractionsEvidence Of Student Attainment:Students: Demonstrate, using Newton's Second Law, how changes in an object's motion depend on the sum of the external forces on the object and the mass of the object. Explain, using Newton's Second Law, how changes in an object's motion depend on the sum of the external forces on the object and the mass of the object.Teacher Vocabulary:Sir Isaac Newton Newton's Second Law of Motion Mass Acceleration Potential energy Kinetic energy Force External force Sum MotionKnowledge:Students know: The acceleration of an object is determined by the sum of the forces acting on it; if the total force on the object is not zero, its motion will change. The greater the mass of the object, the greater the force needed to achieve the same change in motion. For any given object, a larger force causes a larger change in motion. Force = mass x acceleration; F=ma.Skills:Students are able to: Demonstrate Newton's second law. Articulate a statement that relates a given phenomenon to a scientific idea, including Newton's second law and the motion of an object.Understanding:Students understand that: Newton's Second Law states that changes in an object's motion depends on the sum of the external forces on the object and the mass of the object.AMSTI Resources:AMSTI Module: Experimenting with Forces and Motion Alabama Alternate Achievement Standards AAS Standard: SCI.AAS.8.9- Investigate and identify ways to change the motion of an object (e.g., change an incline's slope, change the mass of the object).

Local/National Standards:

Primary Learning Objective(s):

Students will demonstrate and explain Newton's Second Law: how changes in an object's motion depend on the sum of the external forces on the object and the mass of the object.