#### 9P.2: Physical Science

9P.2.2: Motion

9P.2.2.1: Forces and inertia determine the motion of objects.

9P.2.2.1.1: Use vectors and free-body diagrams to describe force, position, velocity and acceleration of objects in two-dimensional space.

9P.2.2.1.2: Apply Newton?s three laws of motion to calculate and analyze the effect of forces and momentum on motion.

9P.2.2.2: When objects change their motion or interact with other objects in the absence of frictional forces, the total amount of mechanical energy remains constant.

9P.2.2.2.1: Explain and calculate the work, power, potential energy and kinetic energy involved in objects moving under the influence of gravity and other mechanical forces.

9P.2.2.2.3: Use conservation of momentum and conservation of energy to analyze an elastic collision of two solid objects in one-dimensional motion.

9P.2.3: Energy

9P.2.3.1: Sound waves are generated from mechanical oscillations of objects and travel through a medium.

9P.2.3.1.2: Describe how vibration of physical objects sets up transverse and/or longitudinal waves in gases, liquids and solid materials.

9P.2.3.1.3: Explain how interference, resonance, refraction and reflection affect sound waves.

9P.2.3.1.4: Describe the Doppler effect changes that occur in an observed sound as a result of the motion of a source of the sound relative to a receiver.

9P.2.3.2: Electrons respond to electric fields and voltages by moving through electrical circuits and this motion generates magnetic fields.

9P.2.3.2.2: Explain and calculate the relationship of current, voltage, resistance and power in series and parallel circuits.

9P.2.3.2.3: Describe how moving electric charges produce magnetic forces and moving magnets produce electric forces.

9P.2.3.2.4: Use the interplay of electric and magnetic forces to explain how motors, generators, and transformers work.

9P.2.3.3: Magnetic and electric fields interact to produce electromagnetic waves.

9P.2.3.3.3: Explain the refraction and/or total internal reflection of light in transparent media, such as lenses and optical fibers.

9P.2.3.3.4: Use properties of light, including reflection, refraction, interference, Doppler effect and the photoelectric effect, to explain phenomena and describe applications.

9P.2.3.3.5: Compare the wave model and particle model in explaining properties of light.

Correlation last revised: 9/16/2020

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