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Unit 3 Definitions

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---------------- Physics Home
----------------- Semester 1
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Unit 1-Nature of Science
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Unit 2-Motion and Forces
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Unit 3-Energy and Momentum
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Unit 4-Heat and Thermodynamics
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Semester 2
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Unit 5-Waves
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Unit 6-Electricity and Magnetism
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Unit 7-Review and Final
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Unit 8-Final Projects

Definitions:

Momentum-A measurement of an object’s mass and velocity.

Mass-A measurement of an object’s matter

Newton's First Law-An object in motion will stay in motion in the same direction and speed unless acted upon by an outside, unbalanced force.

Potential Energy-The energy of position.

Scalar-A quantity that only has magnitude.

Conservation of Momentum-Momentum in an isolated system may be transferred during collisions, but not destroyed.

Velocity-Speed and direction.

Displacement-Change in position.

Impulse Change in Momentum Theorom-The change in an object’s momentum is equal to the impulse applied to that object.

Conservatino of Energy-Energy cannot be created or destroyed.

Kinetic Energy-The energy of movement.

Sine-Opposite over hypotenuse.

Work-A measurement of force multiplied by the displacement in the same direction as the force.

Newton's Second Law-The law that states that acceleration is proportional to the force applied but inversely proportional to mass.

Elastic Collision-A collision that results in two objects traveling away from one another.

Inelastic Collision-A collision that results in two objects traveling with one another.

Impulse-A measurement of the force applied and the time it is applied.

Vector-A quantity with magnitude and direction.

Acceleration-The speed at which speed changes.

Force-A push or pull.

Time-A scalar quantity measured in the base unit of seconds.

Newton's Third Law-For every action there is an equal and opposite reaction.

Cosine-Adjacent over hypotenuse.

Energy-The ability to do work.

Total Mechanical Energy-The total of potential and kinetic energy.

Tangent-Opposite over adjacent.

Angular Momentum-The momentum of object’s traveling in a circular path.