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Forces and Motion

Immune System






Alg HW


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Flight Notes

Content Standards

Expected Performances

Flight Notes


Centripetal Force

Forces and Motion Ė What makes objects move the way they do? Click here to learn more.

8.1 - An objectís inertia causes it to continue moving the way it is moving unless it is acted upon by a force to change its motion.

a) The motion of an object can be described by its position, direction of motion and speed.

b) An unbalanced force acting on an object changes its speed and/or direction of motion.

c)  Objects moving in circles must experience force acting toward the center.

C 22.   Calculate the average speed of a moving object and illustrate the motion of objects in graphs of distance over time.

C 23.   Describe the qualitative relationships among force, mass and changes in motion.

C 24.   Describe the forces acting on an object moving in a circular path.


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FPG- 9 template.pdf

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Grade Level Expectations:

  1. Use appropriate tools and techniques to make observations and gather data to determine how forces, including friction, act on an object to change its position over time in relation to a fixed point of reference.
  2. Calculate the average speed of a moving object, and distinguish between instantaneous speed and average speed of an object.
  3. Create and interpret distance-time graphs for objects moving at constant and nonconstant speeds.
  4. Predict the motion of an object given the magnitude and direction of forces acting on it (net force).
  5. Investigate and demonstrate how unbalanced forces cause acceleration (change in speed and/or direction of an objectís motion).
  6. Assess in writing the relationship between an objectís mass and its inertia when at rest and in motion.
  7. Express mathematically how the mass of an object and the force acting on it affect its acceleration.
  8. Design and conduct an experiment to determine how gravity and friction (air resistance) affect a falling object.
  9. Illustrate how the circular motion of an object is caused by a center-seeking force (centripetal force) resulting in the objectís constant acceleration.

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