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Physics Final
Review
50
Physics
11th Grade
01/24/2012

Additional Physics Flashcards

 


 

Cards

Term
Steps of the Scientific Method
Definition

Problem

Hypothesis

Experiment

Observations

Conclusion

Term
Data
Definition
Information objectively perceived. (How much, long, many, big?)
Term
Facts
Definition
Term
Sig Fig Rules
Definition

Exclude trailing zeros without decimal

Exclude leading zeros

 

Addition/Subtraction:

least significant digit

Term
Atomic Theory
Definition

1.Atoms experience a short ranged attraction that operates effectively over distances of only one or two atomic diameters. The attraction/bonding of atoms create water and other substances. It keeps our nose to our face

 

2.When atoms and molecules are far apart, they barely interact. Reason we can walk through air and pour liquid

 

3. When atoms and molecules get very close they repel powerfully. Allows you to stand on floor. Ordinary matter isn't dense

 

4. Atoms and molecules are always moving. Permeation

Term
Law
Definition
Description of a relationship in Nature that manifests itself in reoccurring patterns or events
Term
Theory
Definition
explanation or phenomena in terms of more basic natural processes and relationships
Term
Hypothesis
Definition
Idea of what might be
Term
Quark
Definition
make up neutrons and protons,
Term
Electron
Definition
negative, made up of leptons
Term
Fundamental Force
Gravitational
Definition
keeps you in the atmosphere and seas fixed to surface of the planet. Wekeast of all forces, least selective and acts between all particles
Term
Fundamental Force
Electromagnetic
Definition
gives rise to short-range interatomic attraction
generated from friction and drag, can be attractive or repulsive, keeps things from being crushed by gravity
Term
Fundamental Force
Definition
Term
Fundamental Force
Strong
Definition
binds quarks together to form neutrons and protons, binds together the form nuclei.
Extremely powerful exceedingly short-range force whose influence extends only a few times the diameter of a proton.
Prevents things from turning into dust
Term
Fundamental Force
Weak
Definition
transforms one type of quark into another. Protons into neutrons
Responsible for the slow decay of some radioactive atoms
Term
Mass
Definition
quantity-of-matter, how much matter there is in a material object, fixed property
Term
Weight
Definition
downward force exerted on an object at the surface of the earth
Term
How was the meter defined?
Definition
one ten-millionth of the distance from the North Pole to the Equator along the meridean line passing through Paris

Distance between two lines inscribed in a bar of platinum-iridium alloy

Distance a photon will travel in 1/2997924583 s
Term
SI Units
Definition
Length m
mass kg
Time s
Force N
Weight J
Current Amp
Temp K
Amount mol
Luminous Intensity col (candle)
Term
Inversely Proportional Graph
Definition


[image]

XY=k
Term
Directly Proportional Graph
Definition
[image] Xx+Yx=y
Term
Directly Proportional by square Graph
Definition

Parabola

X+x=Y+x^3
Term
Kinematics
Definition
the describes motion with no concern of what is causing the motion
Term
Speed
Definition
rate of change in position
v=d/t
Term
velocity
Definition
rate of change of position and direction

V=s/t
s= displacement
Term
Acceleration
Definition
Rate of change of velocity
m/s^2
a=v-vo/t
Term
Vector
Definition
quantities that tell both magnitude and direction

Velocity
Term
Scalar
Definition
quantities that tell magnitude only

Speed
Term
Distance time graph
Definition
Slope = speed
flat line is not moving
diagonal is constant speed
curve up is accelerating
curve down to flat is decelerating
Term
Distance
Definition
total length traveled over entire trip from start
Term
Displacement
Definition
distance from start point to end point
Term
average Speed
Definition
total distance travled divided by total time
Term
instantaneoud speed
Definition
speed at that instant
Term
Vector Resolution
Definition
COMPONENTS
1. Draw original vector
2. Sketch components
3. Find Angle
4. Find components using sin and cos
5. Label drawing
Term
Ways to accelerate
Definition
change speed
change direction
Term
Aristotle
Definition
different laws in heaven than on earth
motion on earth is linear
motion in heaven is curved
sun and planets move around the earth
motion can be natural or violent
body can only continue moving if a force is applied to it
force is proportionate to velocity
heavy objects fall faster than light objects
Term
Copernicus
Definition
proposed controversial heliocentric universe (sun is in the middle)
Term
Galileo
Definition
Supported heliocentric model
heavy and light objects fall at same rate if no air resistance is present
only when friction is present is a force needed to keep an object moving
Term
Newton's 1st law
Definition
object at rest stend to stay at rest and an object in motion tends to stay in motion
Term
Newton's 2nd Law
Definition
Acceleration produced by Fnet on an object is...
Directly proportional to the magnitude of Fnet
In the same direction of Fnet
Inversely proportional to the mass of the object
F=ma
Term
Newton's 3rd Law
Definition
Forces occur in equal and opposite pairs
Punching someone
Term
Inertia
Definition
objects tendency to resist change in motion
More mass= more inertia
Term
Net force
Definition
resultant of all forces acting on an object
Term
Equillibrium
Definition
When net force acting on an object equals zero
Don;t change velocities
Sum of horizontal forces and sum of vertical forces both equal zero
Term
Friction
Definition
force that opposes motion between surfaces that are touching
always opposite direction of motion
measured by mu
Term
Static friction
Definition
prevents motion
Term
Kinetic friction
Definition
slows down motion, always smaller than static
Term
Rolling friction
Definition
type of static friction
car tires have high kinetic friction but low rolling friction\at point of contact with ground, car tire isn't moving along the ground
Term
How to calculate mu
Definition
Ffric=mu*fnorm
Term
Force Time Graph
Definition
Constant velocity when no force is applied
acceleration when force is increasing
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