Review Acceleration quiz

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Class Topics
Title General Science 9/14/07
Objectives

• To learn about force and friction.

• Review Acceleration quiz
• Begin Chapter 12
• Force
• Friction
• Nothing in the world can take the place of
  persistence. Talent will not nothing is more
  common than unsuccessful men with talent. Genius
  will not unrewarded genius is almost a proverb.
  Education will not the world is full of educated
  derelicts. Persistance and determination are
  omnipotent.
• Calvin Coolidge

Handouts
Saturday, October 03, 2009 200 PM
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Class Assignments
By When
What

• Friction Review Sheet 9/14/07
• Read 360-371 9/17/07
• Due this class period
• Due next class period
• Due in the future

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http//www.trekbikes.com/us/en/bikes/2008/mountain
_full_suspension/session/session10/
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Fluid Friction

• The force that opposes the movement of an object
  through a fluid
• Water
• Mixture of gases
• Air resistance

From http//www.marinaustin.com/coolpix.htm
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Magic School Bus
6
Gravity

• Force that acts between any two masses
• Acts downward toward the center of the earth
• Falling objects
• Balance between air resistance and gravity
• Terminal velocity
• Constant velocity of a falling object
• Air resistance equals force of gravity
• P. 370-371

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Projectile Motion

• If two objects are released at the same time they
  fall at the same rate.
• Fig 9 p. 362