PS3_p1

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//Click on the GSE numbers, e.g PS1 (K-2) - POC - 2, in the table below to reach additional information about each GSE. // ||  || Students demonstrate an understanding of motion by…**
 * Grade Span Expectations (K-4) ||   || Grade Span Expectations (5-8) ||   ||  Grade Span Expectations (HS)
 * **PS3 (K-2) - 7

7a showing how pushing/pulling moves or does not move an object.

7b predicting the direction an object will or will not move if a force is applied to it.


 * Students demonstrate an understanding of force by…**

7c showing that different objects fall to earth unless something is holding them up. || **PS3 (3-4) - 7 Students demonstrate an understanding of motion by…**

7a __predicting__ the direction and describing the motion of objects (of __different weights, shapes, sizes, etc.__) if a force is applied to it.

__7b describing change in position relative to other objects or background.__


 * Students demonstrate an understanding of force (e.g., push-pull, gravitational) by…**

__7c investigating and describing that different amounts of force can change direction/speed of an object in motion__.

__7d conducting experiments to demonstrate__ that different objects fall to earth unless something is holding them up. || **PS3 (5-6) - 8 Students demonstrate an understanding of motion by…**

8a using data or graphs to compare the relative speed of objects.

Students demonstrate an understanding of force (e.g., friction, gravitational, magnetic) by…

__8b recognizing that a force is a push or a pull.

8c explaining that changes in speed or direction of motion are caused by forces.

8d showing that electric currents and magnets can exert a force on each other.__ || **PS3 (7-8) - 8 Students demonstrate an understanding of motion by…**

__8a measuring distance and time for a moving object and using those values as well as the relationship s=d/t to calculate speed and graphically represent the data.

8b solving for any unknown in the expression s=d/t given values for the other two variables.

8c differentiating among speed, velocity and acceleration.__


 * Students demonstrate an understanding of force (e.g., friction, gravitational, magnetic) by…**

8d making and testing predictions on how __unbalanced forces__ acting on objects change speed or direction of motion, or both.

__8e describing or graphically representing that the acceleration of an object is proportional to the force on the object and inversely proportional to the object’s mass.

8f differentiating between mass and weight.__

|| **PS3 (9-11) - 8 Students demonstrate an understanding of forces and motion by…**

8a predicting and/or graphing the path of an object in different reference planes and explain how and why (forces) it occurs.

8b using modeling, illustrating, graphing explain how distance and velocity change over time for a free falling object.  || **Example Extension(s) PS3 (Ext) - 8 Students demonstrate an understanding of forces and motion by…**

8aa using a quantitative representation of how distance and velocity change over time for a free falling object.

8bb using a quantitative representation of the path of an object which has horizontal and free fall motion.

8cc. by modeling, illustrating, graphing, and quantitatively explaining the path of an object, which has horizontal and free fall motion. e.g. football, projectile. ||