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16 Cards in this Set
 Front
 Back
when objects fall toward Earth with no forces acting upward; air resistance is neglected when it comes to this

free fall


the product of the fource and the time of application

impulse


tendency of an object to remain in unchaging motion whether actually moving or at rest, when the net force is zero

inertia


the total momentum of a group of interacting objects remains constant in the absence of external forces

law of conservation of momentum


the product of the mass of an object times ins velocity

momentum


a unit of force defined as kg.m/s2; this is needed to accelerate a 1 kg mass 1 m/s2

newton


Quantityof 5 m/s2 is a measure of

acceleration


Automobile has how many different devices that can cause it to undergo acceleration

three or more


Ignoring air resistance, an object faling toward the surface of Earth has a velocity that is

increasing


Ignoring air resistance, an object falling near the surface of Earth has an acceleration that is

constant


Two objects are released from the same height at the same time and one has twice the weight of the other. Ignoring air resistance

they both hit at the same time


A ball rolling across the floor slows to a stop because

there is a net force acting on it


Considering the forces on the system of you and a bicycle as you pedal the bike at a constant velocity in a horizontal straight line

all forces are in balance, with the net force equal to zero


If you double the unbalanced force on an object of a given mass, the acceleration will be

doubled


If you double the mass of a cart while it is undergoing a constant unbalanced force, the acceleration will be

half as much


Doubling the distance between the center of an orbiting satellte and the center of Earth will result in what change in the gravitational attraction of Earth for the satellite

one fourth as much
