Grade Level Expectations:
- 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.
- Calculate the average speed of a moving object, and distinguish
between instantaneous speed and average speed of an object.
- Create and interpret distance-time graphs for objects moving at
constant and nonconstant speeds.
- Predict the motion of an object given the magnitude and
direction of forces acting on it (net force).
- Investigate and demonstrate how unbalanced forces cause
acceleration (change in speed and/or direction of an objectís motion).
- Assess in writing the relationship between an objectís mass and
its inertia when at rest and in motion.
- Express mathematically how the mass of an object and the force
acting on it affect its acceleration.
- Design and conduct an experiment to determine how gravity and
friction (air resistance) affect a falling object.
- 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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Mr. Hand's 8th Grade Science Site