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| GRADE 9 - 12 |
| PHYSICAL SCIENCE BODY OF KNOWLEDGE |
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Standard 12: Motion
A. Motion can be measured and described qualitatively and quantitatively. Net forces create a change in
motion. When objects travel at speeds comparable to the speed of light, Einstein's special theory of
relativity applies.
B. Momentum is conserved under well-defined conditions. A change in momentum occurs when a net force is
applied to an object over a time interval.
C. The Law of Universal Gravitation states that gravitational forces act on all objects irrespective of their
size and position.
D. Gases consist of great numbers of molecules moving in all directions. The behavior of gases can be modeled
by the kinetic molecular theory.
E. Chemical reaction rates change with conditions under which they occur. Chemical equilibrium is a dynamic
state in which forward and reverse processes occur at the same rates. |
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BENCHMARK CODE |
BENCHMARK |
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SC.912.P.12.1 |
Distinguish between scalar and vector quantities and assess which should be used to
describe an event. |
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SC.912.P.12.2 |
Analyze the motion of an object in terms of its position, velocity, and acceleration
(with respect to a frame of reference) as functions of time. |
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SC.912.P.12.3 |
Interpret and apply Newton's three laws of motion. |
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SC.912.P.12.4 |
Describe how the gravitational force between two objects depends on their masses and
the distance between them. |
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SC.912.P.12.5 |
Apply the law of conservation of linear momentum to interactions, such as collisions
between objects. |
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SC.912.P.12.6 |
Qualitatively apply the concept of angular momentum. |
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SC.912.P.12.7 |
Recognize that nothing travels faster than the speed of light in vacuum which is the
same for all observers no matter how they or the light source are moving. |
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SC.912.P.12.8 |
Recognize that Newton's Laws are a limiting case of Einstein's Special
Theory of Relativity at speeds that are much smaller than the speed of light. |
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SC.912.P.12.9 |
Recognize that time, length, and energy depend on the frame of reference. |
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SC.912.P.12.10 |
Interpret the behavior of ideal gases in terms of kinetic molecular theory. |
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SC.912.P.12.11 |
Describe phase transitions in terms of kinetic molecular theory. |
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SC.912.P.12.12 |
Explain how various factors, such as concentration, temperature, and presence of a
catalyst affect the rate of a chemical reaction. |
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SC.912.P.12.13 |
Explain the concept of dynamic equilibrium in terms of reversible processes
occurring at the same rates. |
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| News and Views |
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| News Items |
February 1, 2012
Fuel Cell Today update.
read more |
January 13, 2012
Sewer Agenda.
read more |
December 23, 2011
Scientist: Water account overdrawn.
read more |
Novemver 14, 2011
Submission to the Citrus County Commissioner, 14 November, 2011.
read more |
October 25, 2011
Letter dated 19 October 2011 entered into the Public Record at a meeting of
the Citrus County BOCC.
read more |
October 9, 2011
Submission to the Citrus County Director of Water Resources for discussion on Wednesday 12 October, 2011.
read more |
September 23, 2011
Response to the Governor's Office 23 September, 2011.
read more |
August 14, 2011
The future of our fresh water is in our hands.
read more |
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