Physics Forces Vocab Flash Cards

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Title: Physics Forces Vocab
Description: Forces Chapter 5 vocab
Number of Cards: 20
Save Count: 0
Author: kevinjr16
Created: 2009-12-02
Tags: forces physics
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    • Question
    • Answer
    • Side 3
    • force
    • push or a pull
    • gravitational force
    • an attractive force that exists between all objects
    • electromagnetic force
    • one of the fundamental forces due o electric charges, both static and moving
    • strong nuclear force
    • force of very short range that holds neutrons and protons in nucleus together
    • weak force
    • a form of electromagnetic force involved in the radiocative decay of some nuclei.
    • Newton first law
    • states that an onject with no force acting on it moves with constant velocity
    • Newton's second law
    • the acceleration of a body is directly proportional to the mass
    • Newton's third law
    • When one onject exerts a force on a second object, the second exerts a force on the force that is equal in magnitude but opposite in direction
    • action reaction forces
    • pair of forces involved in an interaction that are equal in magnitude and pposite in direction
    • weight
    • force of gravity on an object
    • inertial mass
    • ratio of net force exerted on an object to its acceleration
    • friction
    • the force that opposes the motion between two surfaces that are in contact
    • static friction
    • the force that opposes the start of motion
    • sliding friction
    • the force between surfaces in relative motion
    • coefficient of friction
    • mu, a constat that depends on the two surfaces in contact
    • terminal velocity
    • velocity of falling object reached when force of air resistance equals weight
    • What is the difference between kinematics and dynamics?
    • kinematics- study of how objects move
      dynamics- the study of why objects move
    • What is the difference between mass and weight?
    • weight depends on acceleration due to gravity
      - mass never changes
    • what is the main unit of force?
    • Newton
    • What is a Newton?
    • 1kg/m/squared