International Arab Baccalaureate

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International Arab Baccalaureate 2010 Pilot Sample Outcomes & Items www.EducationalRC.org

Physics www.EducationalRC.org Kinematics A pitcher hits a ball off a cliff, from a height H above the lowest point below him. Air resistance is ignored. www.EducationalRC.org H

Conception: Projectile State Law www.EducationalRC.org Outcome: To realize that the ball is in parabolic uniformly accelerated motion according to a specific state law (kinematic equation(s) of motion) www.EducationalRC.org Question 1: Describe the motion of the ball if it were kicked off with an initial horizontal velocity vo. Write the appropriate equation(s) describing the motion of the ball.

Descriptive, Discriminatory Analysis www.EducationalRC.org Outcome: To ascertain that the range of the ball is determined, for a given height H, only by the direction and magnitude of its initial velocity www.EducationalRC.org Question 2: How should the pitcher hit the ball so that it lands a distance R from the bottom of the cliff?