# science cards 1

 The flashcards below were created by user daraxoxo19@aim.com on FreezingBlue Flashcards. educated guess using what you know and what youve observed hypothesis amount of space occupied by an object volume push or pull that one body exerts on another force force that opesses motion between two touching surfaces friction states that any two masses exerts an attractive force on each other, the amount of which depends on the mass of the two objects and the distance between them law of gravitation organized procedure for testing a hypothesis that tests the effect of one thing on another under controlled conditions experiment distance an object travels per unit of time speed sum of the forces that are acting on an object net force acceleration of an object toward the center of a curved or circular path centripetal acceleration speed of an object at a given point in time, which is constant for an object moving at a constant speed and is different at each point in time for an object that is slowing down or speeding up instantaneous spead factor that can cause a change in the results of an experiment variable describes the speed and direction of a moving object velocity forces on a body that are equal in size and opposite in direction and do not change the motion of the body balanced force a force directed toward the center of a cirlce for an object moving in a circular motion centripetal force property that a moving object has because of its mass and velocity momentum a variable that does not change, when other variables change in an experiment constant rate of change of velocity, which occurs when an object speeds up, slows down, or changes direction acceleration resistance of an object to a change in its motion inertia gravitional force exerted on an object by earth weight total distanc that an object travels divided by the total time it takes to travel that distance average speed liters to mili-liters l>mL mutiply times 1000 mili-liters to liters mL>Ldivide by 1000 celios to kelvin c>kcelios plus 273= kelvin kelvin to celios k>ckelvin - 273= celios momentum p=mvmomentum= mass x velocity speed s= d/tspeed= distance/time acceleration a= (Vf-Vi)/tacceleration= (final velocity-initial velocity)/time velocity v= p/mvelocity= momentum/mass mass m= p/vmass= momentum/velocity newton's 1st law of motion object moving at a constant velocity keeps moving at that velocity until a net force acts on itif npo forces are acting on a moving object, it continues to move newton's 2nd law of motion all the forces added together is the net forcenet force acting on an object causes the object to accelerate in the direction of thr net force newton's third law of motion when one object exerts a force on a second object, the second object exerts a force of the first that is equal in size and opposite in direction.every action has a seperate and opposite reaction Authordaraxoxo19@aim.com ID49287 Card Setscience cards 1 Descriptionflashcards doing stuff Updated2010-11-13T21:51:06Z Show Answers