Details Title: chapter 6.2, 7, 8 and 14 vocab Description: uhggg Total Flash Cards: 28 Created: 02/18/2008 18:28:38		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Physics Flashcards
Cards in this set: Term Gravitational Field Definition object with mass is surrounded by this. Another object experiences a force due to the interaction between its mass and the gravitational force Term inertial mass Definition the mass related to inertia of an object Term gravitational mass Definition mass determines the amount of gravitational force between two objects Term uniform circular motion Definition movement of an object or particle trajectory at a constant speed around a circle with a fixed radius Term centrepital acceleration Definition an object's acceleration wich always points towards the center and is in uniform circular motion Term centripetal force Definition the net force toward the center of the circle of an object moving in a circle Term kepler's first law Definition the paths of the planets are ellipse with the sun at one focus Term Kepler's 2nd law Definition an imaginary line from the sun to a planet sweeps out in equal areas in equal tine intervals Term Kepler's 3rd law Definition the square ratio of the periods of any two planets revolving about the sun is equal to the cube of the ratio of their average distances from the sun Term gravitational force Definition the force of attraction between two objects must be proportional to the objects weight Term law of universal gravitation Definition objects attract other objects with a force that is proportional to the product of their masses and inversely to the square of distance between them Term angular displacement Definition change in angle as object rotates Term angular velocity Definition angular displacement divided by time taken to make displacement Term angular acceleration Definition change in angular velocity divided by the time taken to make the change Term torque Definition measure of how effectively a force causes rotation Term moment of inertia Definition resistance to rotation Term Newton's 2nd law for roatational motion Definition angular acceleration is directly proportional to net torque and inversely to moment of inertia Term center of mass Definition the point on an object that moves in the same way that a point particle would move Term centrifugal "force" Definition not a real force. The apparent outward force Term coriolis "force" Definition not real. We observe a deflection in horizantal motion when we are rotating in a frame refrence Term periodic motion Definition motions that repeat in regular cycles Term simple harmonic motion Definition motion that resultsif force that restores objects equilibrium is directly proprtional to the displactement of the object Term period Definition time needed for object to repeat one comlpex cycle of motion Term amplitude Definition maximum distance that object moves from equilibrium Term Hooke's Law Definition force exerted by a spring is directly proportional to the amount that the spring is stretched Term pendulum Definition consists of a massive object ( bob ) suspended by a string Term resonance Definition occurs when small forces are applied at regular intervals to a vibrating object. Aplitude increases Term Definition