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Physical Science 01

Physical Science Exam 1

QuestionAnswer
Newton's First Law of Motion: Inertia- An object will remain in a stay of rest or motionlessness unless acted on by an external force.
Newton's Second Law of Motion: Force- The acceleration of a body is directly proportional to to the product of their masses and is inversely proportional to the square of the distance between their center mass.
Newton's Third Law of Motion: Action and Reacion To every action force there is an equal and opposite reactional force.
F=ma Force=mass*acceleration
Friction- the force that resists relative motion between two bodies because of the interaction between them.
Force- A push or pull that imparts acceleration to an object.
Mass- A measure of an object's inertia.
Satellite- an object that orbits anround an astronomical body.
Celestial Mechanics- A brach of astronomy that deals with the motions and gravitational influences of the members of the solar system.
Geosynchronous Orbits- orbits that are proportional to the rotation of the Earth.
Momentum- the product of the mass of a moving object and its velocity
Impulse- The product of force and time. A measure of the change in the momentum of an object.
Inelastic Collision- A collision in which momentum is conserved but kinetic energy is not. In a perfectly inelastic collision, two objects collide, then stick together after the collision, so that their final velocities are the same.
Elastic Colision- Example: The colisions of "Newton's Balls"
Angular Momentum- an object rotating in a circular path has an angular momentum of: (mvr) As demonstrated in a bullwhip.
Work- the product of force and the distance moving the direction of the force. W=F*S (Work= Foce * Distance)
Power- The rate at which work is dine. Power=work/time
Energy- The capacity of an object to do work.
Potential Energy- The energy possessed by a body by virtue of its position or condition.
Law of Consercvation of Energy- In a closed system( no outside forces), the total energy is constant. Energy is neither created nor destroyed, only transformed from one form to another.
Created by: mr.vonlipich
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