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Forces and Motion Content Standards
Notes
8.1 - An object’s inertia causes it to continue moving the way it is moving unless it is acted upon by an outside force to change its motion.
Law 1: Inertia
Ø The motion of an object can be described by its position, direction of motion and speed.
Average Speed
Ø An unbalanced force acting on an object changes its speed and/or direction of motion.
Unbalanced Force
What is a force?
Ø Objects moving in circles must experience net force acting toward the center.
Centripetal Force
Variables
Expected Performances
C 22. Calculate the average speed of a moving object and illustrate the motion of objects in graphs of distance over time.
Velocity of a Line
Position Time Graphs
Average Acceleration
C 23. Describe the qualitative relationships among force, mass and changes in motion.
Law 2: F=ma
C 24. Describe the forces acting on an object moving in a circular path.
Law 3: Action/Reaction
Gravity
Momentum
Physics formulas
Some Vocabulary
How can anything move?
Motion Links
Cool Physics Questions
Tee hee
Review Games
FROM THE MOUTHS OF SCIENCE STUDENTS:
"The tides are a fight between the Earth and moon. All water tends towards the moon, because there is no water in the moon, and nature abhors a vacuum. I forget where the sun joins in this fight."
"Vacuum: A large, empty space where the pope lives."
These comments come from test papers and essays submitted to science and health teachers by elementary, junior high, high school, and college students and compiled at the NEA Life Sciences Symposium, Kansas City, Kansas. As the originator noted, "It is truly astonishing what weird science our young scholars can create under the pressures of time and grades." Please note that the original spelling has been left intact.
Mr. Hand's 8th Grade Science Site
