Unit ProjectUnit Project

Today’s AgendaToday’s Agenda

Opener: What is a Newton?Opener: What is a Newton? Unit 1: Sports Project PresentationsUnit 1: Sports Project Presentations Build A Rube GoldBergBuild A Rube GoldBerg Closure: Identify energy transformations Closure: Identify energy transformations

in a Rube Goldberg.in a Rube Goldberg.

(honors) Assignment: Read Chapter 32 on (honors) Assignment: Read Chapter 32 on Electrostatics.Electrostatics.

GoalsGoals

Make a presentation for Unit 1: SportsMake a presentation for Unit 1: Sports Identify transformations of energy in a Identify transformations of energy in a

Rube GoldbergRube Goldberg

Big Idea:Big Idea: Objects that move in Objects that move in translational motion are translational motion are described in terms of position, described in terms of position, velocity, and acceleration.velocity, and acceleration.

Concept: The position, velocity, and Concept: The position, velocity, and acceleration of an object can be acceleration of an object can be measured and quantified (in magnitude measured and quantified (in magnitude and direction), using appropriate tools and direction), using appropriate tools and units, in a reference frame. and units, in a reference frame.

Big Idea:Big Idea: All forces arise from All forces arise from the interactions between the interactions between different objects.different objects.

ConceptConcept: When two surfaces of : When two surfaces of objects are in contact with each other, objects are in contact with each other, the force of friction between them the force of friction between them depends on the nature of the materials depends on the nature of the materials in contact and the normal force.in contact and the normal force.

Big Idea:Big Idea: Forces can act upon Forces can act upon an object to change the an object to change the position, direction, and/or position, direction, and/or speed of its motion.speed of its motion.

Concept: Newton’s three laws of motion Concept: Newton’s three laws of motion can be used to explain and measure the can be used to explain and measure the motion of objects.motion of objects.

Big Idea:Big Idea: The rotational motion The rotational motion of objects is described in terms of objects is described in terms of angular position, angular of angular position, angular velocity, and angular velocity, and angular acceleration.acceleration.

Concept: A rotating reference frame can Concept: A rotating reference frame can give the appearance of an object give the appearance of an object constrained to travel in a circular path constrained to travel in a circular path which gives a centripetal acceleration which gives a centripetal acceleration directed from the object toward the center directed from the object toward the center of the rotating reference frame.of the rotating reference frame.

Big Idea:Big Idea: All changes in All changes in rotational motion are due to rotational motion are due to torques.torques.

ConceptConcept: Torque is the rotational : Torque is the rotational analogue of force for translational analogue of force for translational motion. motion. The lesson on center of mass The lesson on center of mass helped you lay the foundation for this helped you lay the foundation for this concept.concept.

StandardsStandards

PA Standard PA Standard 3.2.12.B1:3.2.12.B1: “Analyze the principles of rotational “Analyze the principles of rotational motion to solve problems relating to motion to solve problems relating to angular momentumangular momentum and and torque.” torque.” The concept of circular motion helped you to meet this The concept of circular motion helped you to meet this standard in later Physics courses.standard in later Physics courses.

PA Standard 3.2.10.B1PA Standard 3.2.10.B1: “: “Analyze the relationships among the net Analyze the relationships among the net force acting on a body, the massforce acting on a body, the mass of the body, and the resulting of the body, and the resulting acceleration using Newton’s Second Law of Motion.”acceleration using Newton’s Second Law of Motion.”

PA Standard 3.2.P.B6: “Use Newton’s laws of motion and gravitation PA Standard 3.2.P.B6: “Use Newton’s laws of motion and gravitation to describe and predict the motion of objects ranging from atoms to describe and predict the motion of objects ranging from atoms to the galaxies.”to the galaxies.”

PA Standard 3.2.10.B1: “Analyze the relationships among the net PA Standard 3.2.10.B1: “Analyze the relationships among the net forces acting on a body, the forces acting on a body, the mass mass of the body, and the resulting of the body, and the resulting acceleration using Newton’s Second Law of Motion.”acceleration using Newton’s Second Law of Motion.”

PA Standard 3.2.10.B1: “Use Newton’s 3PA Standard 3.2.10.B1: “Use Newton’s 3rdrd Law to explain forces as Law to explain forces as interactions between bodies.”interactions between bodies.”