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KOTELPHYSMOD3VOCAB

PHYSICAL SCIENCE MODULE 3 VOCABULARY

QuestionAnswer
a push or a pull force
the sum of all forces acting on an object net force
the force that opposes the sliding motion of two surfaces that are touching each other friction
prevents to objects from sliding past one another and is due to the microwelds that form between the two objects static friction
opposes the motion of two objects that are sliding past one another and is due to the microwelds constantly breaking and forming as the objects move sliding friction
static friction acting over an area where wheels and a surface are in contact rolling friction
attractive force between any two objects that depends on their masses and the distance between them gravity
a region of space that has a physical quantity at every point field
gravitational force exerted on an object weight
an object moves at a constant velocity until an unbalanced force acts upon it Newton's 1st Law of Motion
the tendency of an object to resist any change in its motion inertia
an object's acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by the mass Newton's 2nd Law of Motion
when an object exerts a force on a second object , the second object exerts a force on the first object that is equal in strength and opposite in direction Newton's 3rd Law of Motion
friction-like force that opposes the motion of objects that move through air air resistance
the maximum speed that an object will reach when falling though a substance, such as air terminal velocity
state of an object when the only thing acting on it is gravity free fall
force exerted toward the center of a curved path centripetal force
if no external forces act on a group of objects, then their total momentum does not change law of conservation of momentum
unit of force equal to 1 kg x m/s^2 Newton
Created by: CRMissK
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