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Essential Understandings for Physics

Essential Understanding#1:
Linear Motion: The motion of an object can be described by time rates of change. Motion can be described through graphical analysis.

Essential Understanding #2:
Vectors: Quantities can be either vectors or scalars. Perpendicular vectors are independent of each other.

Essential Understanding #3:
Motion in Two-dimensions (Projectile Motion): The independent and different nature of vertical and horizontal components of motion contribute to the parabolic path of a projectile.

Essential Understanding #4:
Newton’s Laws: A non-zero net force is required to have a change in the state of motion of an object. Objects change motion only when a net force is applied. Laws of motion are used to explain the effects of forces on the motion of objects

Essential Understanding #5:
Motion in Two-dimensions (Circular Motion): Circular motion is the result of a center-seeking force

Essential Understanding #6:
Gravitation: Gravitation is the result of the attraction between all mass/matter.

Essential Understanding #7:
Mechanical Energy and Work & Thermal Energy: Energy cannot be created or destroyed. The total mass and energy of the universe is constant. Energy can be transferred from one form to another by doing work.

Essential Understanding #8:
Impulse and Momentum: Impulse can result in a change in momentum. In a close isolated system, interactions between objects result in no net change in momentum.

Essential Understanding #9:
Waves and Sound: Waves are nature’s way of transferring energy without transferring matter. There are a variety of wave types and classifications. Waves have predictable characteristics and behaviors.

Essential Understanding #10:
Light and Color & Quantum Theory & Optics: Light is a phenomena that has both wave and particle behaviors.

Electricity & Magnetism
Essential Understanding #11:
Electrostatics and Electric Fields: An electric force is a universal force that exists between any two charged objects. All charged objects have electric fields.

Essential Understanding #12:
Current Electricity: Electric current is the result of moving charged particles.

Essential Understanding #13:
Magnetism & Electromagnetic Induction: Moving electric charges produce magnetic fields, and moving magnets produce electric forces.

Essential Understanding #14:
Nuclear Physics: The strong-nuclear force holds the atom together.