SCMH 1010 Exam 1 Auburn University Questions And Answers Graded A+

Newton's First Law of Motion - a moving object will continue moving in a straight line at a constant speed, and a stationary object will remain at rest, unless acted on by an unbalanced force Newton's Second Law of Motion - the acceleration produced on a body by a force is proportional to the magnitude of the force and inversely proportional to the mass of the object Newton's Third Law of Motion - for every action, there is an equal and opposite reaction what is the formula for Newton's second law? - F=MxA the _____ the force, the _____ the acceleration - greater; greater the more _____ the object being acted on by a given force, the _____ the acceleration - massive; smaller Law of Inertia - In the absence of a net external force, an object's state of motion will remain constant an object ________ accelerate if there is an absence of a net force - will not Newton's First Law (conceptually) - if you leave an object alone, it will stay stationary and wont change its state of motion. To change it, you have to push/pull it (exert force) Newton's Third Law (conceptually) - whenever a force is applied to an object, that object exerts an equal or opposite force back on you. (a boxer hitting a punching bag) State of Motion - a description of how an object is moving (or not moving)Newton's Universal Law of Gravity - The more massive two objects are, the greater the force b/w them will be, and the farther apart they are, the less force will be Gravity - an attractive force that acts on every object in the universe Characteristics of Gravity - - when you drop things, they fall - a force b/w any two objects in the universe - a gravitational force is being pushed down on us, making it so we can stand firmly and not float - distance makes the force bigger or smaller Newton's Equation for universal law of gravity - velocity - the distance an object travels divided by the time it takes to travel that distance, including direction of travel (V=d/t) speed+a direction acceleration - a measure of the rate of change of velocity, how fast your velocity is changing **doesn't mean an object is speeding up** position - the location relative to the reference point. it's a vector quantity b/c it does have a direction vector - a quantity that gives us how fast something is going (magnitude) and a direction Law of Conservation of Energy - energy can't be created or destroyed, but may change from one form to another Consequences of the Law of Conservation of Energy - - the total energy in the world is finite - energy may be stored for later use - this energy may be used for our purposesPotential Energy - the energy a system possesses if it is capable of doing work, but is not doing work now (stored energy) *PE=m(kg)*g(m/s^2)*h(m) Types of Potential Energy - - magnetic - elastic - electrical - chemical (eating food) Kinetic Energy - type of energy associated with moving objects; energy of motion. Is equal to the mass of the moving object times the square of that object's velocity, multiplied. (KE=1/2mv^2) thermal energy is used to describe the _____ of atoms and molecules which are always in a state of vibration - collective KE work - the force that is exerted times the distance over which it is exerted; measured in joules (picking up a textbook) w=f*d work is only done when ____ is exerted over a distance - force heat - the process by which thermal energy is transferred, but it is typically used in place of "thermal energy" three methods of heat transfer - conduction, convection, radiation