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Science Chapter 12
21 cards·by Brianna_Boyd-Riley
force
a push or pull that acts on an object
newton
the force that causes 1-kilogram mass to accelerate at a rate of 1 m/s/s
net force
the overall force acting on an object after all forces are combined
friction
a force that opposes movement
static friction
the friction force that acts on objects that are not moving
rolling friction
the friction force that acts on a rolling object
fluid friction
opposes the motion of an object through a fluid
air resistance
fluid friction acting through the air
gravity
a forces that acts betweeb two masses, its an attractive force that pulls objects together.
terminal velocity
the constant velocity of a falling object when the force of air resestince equals the force of
gravity
projectile motion
the motion of a fallen object after it is given an intial forward velocity
inertia
the tendency of an object to resist a change in motion
mass
the measure of the inertia of an object and depends on the amount of matter the object contains
weight
the force of gravity acting on an object
momuntum
the product of an objects mass and its velocity.
law of concervatio of momentum
if no net force acts on a system,then the total momentum of the system does not change.
electromagnetic force
is accociated with changed particles
strong nuclear force
a powerful attractive force that binds protons and nuetrons together in the nueclus
weak nuecular force
a powerful attractive force that acts over a short range
gravitational force
an attractive force that acts between any two forces
centripetal force
a force that continuously changes the direction of an object to make it move in a circle