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23 terms

bms-force&motion-ADV

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Acceleration
the rate at which velocity changes; an object accelerates if its speed and / or direction changes. Acceleration may be postitive(increasing) or negative (decreasing)
Centripital Force
the accelration of an object in a circular motion
force
a push or a pull
Balanced force
forces acting on an object that cause the net force to be zero
unbalanced force
forces acting on an object that cause the net orce to be greater than zero
gravity
the attractive force between two objects proportional to gravity
inertia
the tendency of all objects to resist any change in motion (start or stop)
mass
the amount of matter in an object
milky way galaxy
our solar system is part of this galaxy. It contains single stars , double stars, asteroids, meteors, and gas and dust.It is an elliptical shape.
motion
an objects change in position over time when compared with a reference point
newton's laws of motion
1an object in motion will remain in motion or an object at rest will remain at rest unless acted upon by an outside force.
2the accelaration of an object is equal to the mass of that object and the force applied
3 for every action force there is an equal and opposite reaction force.
newton
the SI unit of force.
orbit
the path of an object as it revolves around another object
revolution
the movement of an object around another object
rotation
the spinning motion of a planet about its axis
speed
the rate at which an object moves(S=d/t) Speed=distance/time
straight line motion
motion in a straight line
satellite
any object that revolves around another object in space.
tide
the daily rise and fall of earth's waters on shores
weight
a measure of the gravitational force on an object
work
the action that results form doing something (W=fxd) Work =force times distance
work is equal to the force applied multiplied by the distance an object is moved
conservation of momentum
the total momentum of the two objects before the collsion is equal to the total momentum of the two objects after the collsion . That is, the momentum lost by object 1 is equal to the momentum gained by object 2
friction
sliding, rolling, fluid, static