Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
106 Cards in this Set
- Front
- Back
The science that examines fundamental laws relating matter and energy
|
Physics
|
|
The first scientist to base conclusions on experimental evidence
|
Galileo
|
|
Mass,____,and time are considered fundamental quantites
|
length
|
|
In SI, the fundamental unit of mass is the _____
|
kilogram
|
|
The ____ of an object is the quantity of matter it contains
|
mass
|
|
The units of speed and volume are examples of _____ units
|
derived
|
|
An error due to ____ is possible if a meter scale is not read from directly in front
|
parallax
|
|
When using scientific notation, it is customary to have ____ digit(s) to the left of the decimal point
|
one
|
|
In using scientific notation, measurements can be added or subtracted only if the exponents are _____
|
equal
|
|
____ is the extent to which a measured value agrees with the accepted value for a quantity
|
accuracy
|
|
The___ of a measuring device is limited by the finest division on its scale
|
Precision
|
|
The figures written for a measurement are called ___ digits
|
significant
|
|
A(n)___ that serves only to locate a decimal point is not significant
|
zero
|
|
The result of a mathematical operation on measured quantities cannot be more precise than the___ precise of the quantities involved
|
least
|
|
In the metric system,___ are used to change the value of standard units by powers of ten
|
prefixes
|
|
It is customary to isolate the___ on the left side of an equation
|
variable
|
|
in performing an experiment, the values of the___ variable are carefully changed and the corresponding values of the___ variable are then measured
|
dependent,independent
|
|
In graphing, the values for the___ variable usually are plotted on the horizontal (x) axis
|
independent
|
|
The graph of a(n)___ variation is a straight line passing through the origin
|
direct
|
|
The shape of the graph in which shows the dependent variable in inverse variation with the independent variable is a(n)___
|
hyperbola
|
|
A graph whose shape is a(n)___indicates that the dependent variable varies as the square of the independent variable
|
parabolic
|
|
When one quantity varies directly with another, the second quantity will___ as the first increases
|
increase
|
|
When one quantity varies inversely with another, the second quantity will___ as the first increases
|
decrease
|
|
The general equation for a graph which is a straight line passing through the origin is___
|
y=mx+b
|
|
The general equation of a parabola is___
|
y=kx(2)
|
|
The___ of a measuring device is limited by the finest division on its scale
|
Precision
|
|
The figures written for a measurement are called ___ digits
|
significant
|
|
A(n)___ that serves only to locate a decimal point is not significant
|
zero
|
|
The result of a mathematical operation on measured quantities cannot be more precise than the___ precise of the quantities involved
|
least
|
|
In the metric system,___ are used to change the value of standard units by powers of ten
|
prefixes
|
|
It is customary to isolate the___ on the left side of an equation
|
variable
|
|
in performing an experiment, the values of the___ variable are carefully changed and the corresponding values of the___ variable are then measured
|
dependent,independent
|
|
In graphing, the values for the___ variable usually are plotted on the horizontal (x) axis
|
independent
|
|
The graph of a(n)___ variation is a straight line passing through the origin
|
direct
|
|
The shape of the graph in which shows the dependent variable in inverse variation with the independent variable is a(n)___
|
hyperbola
|
|
A graph whose shape is a(n)___indicates that the dependent variable varies as the square of the independent variable
|
parabolic
|
|
When one quantity varies directly with another, the second quantity will___ as the first increases
|
increase
|
|
When one quantity varies inversely with another, the second quantity will___ as the first increases
|
decrease
|
|
The general equation for a graph which is a straight line passing through the origin is___
|
y=mx+b
|
|
The general equation of a parabola is___
|
y=kx^2
|
|
The general equation of a hyperbola is___
|
y=k/x
|
|
The___ of an angle in right triangle equals the opposite side divided by adjacent side
|
tangent
|
|
A(n)___ quantity is completely described by its magnitude
|
scalar
|
|
A(n)___ quantity has both magnitude and direction
|
vector
|
|
Velocity and displacement are examples of___ quantities
|
vector
|
|
The sum of two vector quantities is determined by their___ and magnitudes
|
direction
|
|
Speed represents the magnitude of ___
|
velocity
|
|
The rate of change of velocity is called___
|
acceleration
|
|
A car travels 750 kilometers in 10 hours. The ___ speed of this car is 75 kilometers per hour
|
average
|
|
The___ velocity of an object in motion is its velocity at any given instant of time
|
instantaneous
|
|
___can be computed by dividing an object's change in velocity by the time necessary to make that change
|
average acceleration
|
|
The SI unit for acceleration is___
|
m/s^2
|
|
An object that is slowing down is said to have a(n)___ acceleration
|
decreasing
|
|
The final velocity of a uniformly accelerating object which started from rest is equal to its acceleration multiplied by the___
|
time
|
|
The sum of two vector quantities is determined by their___ and magnitudes
|
magnitude
|
|
The length of an arrow-tipped line segment drawn to represent a vector is porportional to the___ of a vector
|
line
|
|
Vectors can be added by placing the___ of one vector at the head of another vector
|
end
|
|
When vectors are added, the___ is drawn from the tail of the first vector to the head of the second vector
|
resultment
|
|
A person takes a walk around a city. The vector drawn from starting position to the final position represents a(n)___
|
displacement
|
|
When adding two vectors, neither the length nor the___ of either vector is changed
|
direction
|
|
If two vectors act in the same or in___ directions, their vector sum can be found algebraically
|
opposite
|
|
If two vectors act perpendicularly, the magnitude of the resultant vector can be found using the___ theorem
|
pythagoreum
|
|
Any vector can be resolved into___ which, when added, give a resultant equal to the original vector
|
components
|
|
For an object moving at a(n)___ speed, the distance traveled is directly porportional to the elapsed time
|
constant
|
|
The steepness of a graph line is called the___ of the graph
|
slope
|
|
The slope of a straight of a position-time graph yields the___ of the moving object
|
velocity
|
|
The slope of a straight line is___
|
constant
|
|
As the velocity of an object increases, the slope of the line on the position-time graph___
|
increases
|
|
When the slope of the line on a distance-time graph is___ the object involved is at rest
|
zero
|
|
On a(n)___-time graph, the area between the line of the graph and horizontal axis represents the displacement of the object
|
Velocity
|
|
With constant acceleration, the curve of a(n)___-time graph is a half parabola
|
position
|
|
The slope of the line on a velocity-time graph shows the___ of a moving object.
|
acceleration
|
|
With constant acceleration, the distance an object travels varies directly with the___
|
t^2
|
|
If the position-time graph is a curved line, the slope of the___ yields the instantaneous speed at the point of the curve it touches
|
tangent
|
|
The area between the graph line and the horizontal axis on a(n) ___-time graph represents the change of velocity of the object in a given time interval
|
acceleration
|
|
A negative acceleration might mean that an object is speeding up while goingin the___ direction
|
opposite
|
|
Straight lines on a position-time graph indicate that no___ occurs
|
motion
|
|
___and Galileo contributed most to our understanding of motion
|
Newton
|
|
A change in state of motion of an object is caused by a(n)___
|
force
|
|
Electromagnetic forces are___ than gravitational forces
|
stronger
|
|
___is the property of an object which causes it to resist all changes in state of motion
|
inertia
|
|
Unless acted upon by a(n) ___ an object at rest or in a state of uniform motion will remain at rest or in uniform motion
|
unbalanced outside forces
|
|
An object is___ when an unbalanced force acts on it
|
accelerating
|
|
A net force of one___ gives a mass of 1 kg an acceleration of 1 m/s^2
|
Newton
|
|
The acceleration of an object varies directly with the applied force and inversely with the___ of the object
|
mass
|
|
____is the measurement of the gravitational force acting on an object
|
weight
|
|
____depends upon the amount of matter in an object and is independent of the location of the object
|
mass
|
|
____is a force that opposes the motion of an object
|
friction
|
|
The force of friction depends upon the type of surfaces in contact and the object's____
|
weight
|
|
Static friction is ____ than sliding friction
|
stronger
|
|
Complete the following statement: "Every force is accompanied by a(n)____
|
opposite and equal force
|
|
Force, like velocity and displacement, is a ____ quantity
|
constant
|
|
The sum of two vectors, or the ____, is found by drawing a third vector from the tail of the first to the head of the second
|
slope
|
|
If two vectors act in the same or in____ directions, their vector sum can be found algebraically
|
opposite
|
|
If two vectors act perpendicularly, the magnitude of the resultant vector can be found using the ____ theorem
|
pythagorean theorem
|
|
If three different 7.0N forces act simultaneously on the same object, the resultant can be no greater than ____N
|
21
|
|
An object is in ____ when the vector sum of the forces acting on it is zero
|
equilibrium
|
|
A single force that can place two or more other forces acting on a single point in equilibrium is ____
|
equilibrant
|
|
The ____force is equal in magnitude to the resultant, but opposite in direction
|
equilibrant
|
|
Any vector can be resolved into____ which, when added, give a resultant equal to the original vector
|
components
|
|
Any object that is thrown or otherwise projected into the air is called a(n)____
|
projectile
|
|
A(n)____ is the path taken by an object thrown into the air
|
trajectory
|
|
The vertical and horizontal motions of a projectile shot into the air are ____ of one another
|
independent
|
|
Because of inertia, the____ velocity of a projectile is constant
|
horizontal
|
|
The time required for a projectile to strike the ground depends on the original height, the initial____ velocity and the acceleration due to gravity
|
vertical
|
|
Two golf balls are released at the same time from the same height. One ball is dropped vertically while the other is projected horizontally. The____ of the two balls is always the same
|
height
|