Term

Definition
the organization of the universe 


Term
it builds understanding of __________ that govern the universe 

Definition


Term
allows _________ and ___________ of natural laws 

Definition


Term
speed the measure of hte _________ in a give amount of ________ 

Definition


Term

Definition


Term

Definition


Term
distance how _____ an obeject in motion travels (in ___) 

Definition


Term
displacement the __________ of an object in motion from initial position to final position. 

Definition


Term
velocity change in _______ of an object over a __________ 

Definition
displacement, time interval 


Term
constant speed objects do not _____ or ____________. Objects cover _________ amount of distnaces each ___ interval. 

Definition
speed up, slow down, time 


Term
constant velocity constant speed in ___________ 

Definition


Term
a graph shows how _________ are related with a picture 

Definition


Term
independent variable this is the variable that you as the experimenter are free to change. It is usually plotted on the ________ or the ___ axis. It is sometimes called the ____ variable. 

Definition
horizontal, x, manipulated 


Term
dependent variable the value of this variable depends on changes in the independent variable. It is plotted on the __________ or _______ axis. IT is sometimes called the ___________. 

Definition


Term
to remember varibles: its all about HIM on VD you want R 

Definition
horizontal, independent, manipulated vertical, dependent, responding 


Term
a graph can be used as a __ to make _______ based on the relationship between x and y variables. 

Definition


Term
Graph Relationship: strong relationship between variables this means that a _____ change in one variable causes a _______ change in another variable. 

Definition


Term
Graph Relationship: no relationship between variables a change in one variable has _______ effect on the other variable 

Definition


Term
Graph Relationship: weak relationship between variables a big change in one variable has _____ effect on the other variable. 

Definition


Term
Graph Relationship: inverse relationships when one variable increases, the other variable ________. 

Definition


Term
acceleration is the _ in the ______ of an object 

Definition


Term
a "rate of change" means the ratio of ________ in one variable divided by how much ________ the change takes. 

Definition


Term
units for acceleration are: 

Definition


Term

Definition
change in speed change in time 


Term
acceleration can be in the ____ direction as an object's speed or it can be in the ________ direction 

Definition


Term
speed ________ when acceleration is the in the _____ direction adn _______ hwen acceleration is in the ___ direction as the speed. 

Definition
increases, same decreases, opposite 


Term
when speed and acceleration have hte same sign, speed ______. when speed and acceleration have opposite signs, speed _______. 

Definition


Term
an object has ______ acceleration if it is traveling at a constant speed in one direction. 

Definition


Term
constant acceleration means that speed changes by the ____ amount for every interval of time. 

Definition


Term
an object can have _______ with zero speed 

Definition
acceleration. (ex. throwing a ball up into the air. it travels in one direction, slows down, stops, then stars traveling in the opposite direction.) 


Term
slope rise/run acceleartion= ?/? 

Definition


Term
when the slope of the graph is steeper, that represents ____ acceleration. 

Definition


Term
a negative value for the slope indicates _______ acceleration. 

Definition


Term
from a speed vs. time graph, the area under the curve represents __________ 

Definition


Term
free fall an object is in free fall if it is falling due to the influence of ______ only. 

Definition


Term
gravity on earth causes all objects to accelerate at the same rate _________ toward the _________. 

Definition


Term
The accelration due to gravity is given the symbol _____ 

Definition


Term
all objects, regardless of whether they are large or small, fall at hte ______ in the absence of air resistance 

Definition


Term
air resistance is a force exerted on objects moving through the air. You have felt this force if you have ever hung your arm out hte window of a moving car. Air resistance acts to ______ the speed of falling objects, but may be ignore for objects with a small surface area and large mass. 

Definition


Term
the maximum speed with which an object falls through the air when limited by air resistance is ________. 

Definition


Term
terminal speed depends on _____, ________, and ______. 

Definition


Term
force a  or a  on an object. 

Definition


Term

Definition


Term
force is a vector quantity in other words it has magnitude and ________ 

Definition


Term
new force vector sum of all _____ acting on an _________ 

Definition


Term
when all forces acting on an object are balanced, the object has _________. 

Definition


Term
when all the forces acting on an object do not add up to zero, an object's motion will change it will not move at a __________________________________ or stay ______________. 

Definition
constant velocity in a straight line, at rest 


Term
Newton's first law an object  remains  and an object  remains  with a  velocity unless acted upon by a  external . 

Definition
at rest, at rest in motion, in motion, constant net, force 


Term
newtons first law is often referred to as the ________ 

Definition


Term
inertia is a property of an object's 

Definition


Term

Definition
tendency of an object to resist changes in it's motion 


Term
large mass implies _____ inertia and ____ mass implies _______ inertia 

Definition


Term
It does not take a ____ to keep an object moving. It takes a _____ to stop the object 

Definition


Term
A .4 kg puck is moving horizontally across an air hockey table with a speed of 4 m/s. How much net force is require d to keep the puck moving at this speed and in this direction? 

Definition


Term

Definition


Term
the unit of force, the ____, can be broken down to the units for mass and acceleration= 1 ____ = 1 kg/ms2 

Definition


Term
the direction of the net force and the acceleration will be the 

Definition


Term
zero acceleration would mean the net force is also zero and this state is called 

Definition


Term
Free body diagrams to determine whether an object will accelerate, we need to konw the _________. a diagran shows all the forces acting ON an object is called a free body diagram. 

Definition


Term
Newton's second law the  of an object is  proportional to the net external force acting on the object and  proportional to the  of the object. 

Definition
acceleration, directly, indirectly, mass 


Term
Newton's third law for every  there is an  

Definition
action force, equal, opposite reaction force 


Term
action reaction forces always: occur in  act on   

Definition
occur in pairs, act on different objects 


Term
why dont action reaction pairs cancel each other out? 

Definition
they act on different objects. 


Term
a scalar quantity that can be completely described by one value the ______ 

Definition


Term
examples of scalar quantities 

Definition
energy, temperature, time, pressure, distance, height, mass 


Term
vectors require  and  to completely describe the measurement. 

Definition


Term

Definition
weight, veloctiy, acceleration, momentum 


Term
to combine vectors use the ______ method 

Definition


Term
projectile something moving through teh _______ only onder the affect of _____ 

Definition


Term
the path a projectile follows is called a . The equation that describes the path of a projectile forms a __ shape. 

Definition


Term
teh magnitude of a velocity vector is the 

Definition


Term
once an object is travelling only under the influnece of gravity, the  motion and the  motions are  of each other. 

Definition
horizontal, vertical, independent 


Term
a projectile travels under the influence of gravity 

Definition


Term
range or horizontal distance depends on the   and the  ./ 

Definition
launch angle, launch velocity 


Term
a launch angle of  degrees evenly divides the horizontal and vertical components of velocity and thus gives the  range 

Definition


Term
mass the amount of  an object contains 

Definition


Term

Definition


Term
does an objects mass vary with location? 

Definition


Term
weight the force of  acting on an object 

Definition


Term
the strenght of gravity is not constant throughotu the universe. so, weight 0000 vary as location changes 

Definition


Term
when is an object weightless? 

Definition
when no force of gravity is acting on you. 


Term
weightlessness can occur ==== or ===== 

Definition


Term
when an object is in equilibrim, all the forces acting on the object 000000. 

Definition


Term
normal force means  

Definition


Term
normal force is perpendicular to the  on which an object is placed 

Definition


Term
frictional forces  or  motion. 

Definition


Term
friction results when a force is applied to an object in contact with a surface and is caused by  in the  

Definition
imperfections, two surfaces 


Term
friction depends on: mass of   of two surfaces in contact 

Definition


Term
the  is a measure of hte strength or kinetic friction between teh two surfaces 

Definition


Term
it taks a certain amount of force to start an object moving but usually _____ to keep it moving 

Definition


Term
since friction  motion, it  the acceleration produced by the forces applied to the object. 

Definition


Term
reducing friction fricional forces are  but can be reduced 

Definition


Term
lubricant is a  used to reduce friction. what is an example? 

Definition
liquid, adding oil to a car. 


Term
magnetic levitation powerful magnets are used to lift an object so it can ride ona cushion of 

Definition


Term
does equilibrium mean that no force is acting on the object? 

Definition
no, all forces are balanced 


Term
applications of equilibrium once you identify the force acting on an object, knowing that the net force = _____ helps you solve for the unknown foce. 

Definition


Term
the foce always act in a ______ to return the spring to its  / 

Definition
in a direction, unstretched shape. 

