How can we help?

You can also find more resources in our Help Center.

Study sets matching "physics gravity"

Study sets
Classes
Users

Study sets matching "physics gravity"

28 terms
physics gravity
why did Newton think that a force must…
What did newton conclude about the for…
If the moon falls why doesn't it get c…
what is meant by tangental velocity
the moon orbits the earth
gravity
satalittes fall around the earth
the velocity of a salattlie
why did Newton think that a force must…
the moon orbits the earth
What did newton conclude about the for…
gravity
10 terms
Physics - Gravity
Law of universal gravitation
Inverse-square law
Weight
Weightless
Every body in the universe attracts every other body with a f…
A law relating the intensity of an effect to the inverse squa…
The force that an object exerts on a supporting surface (or,…
Being without a support force, as in free fall.
Law of universal gravitation
Every body in the universe attracts every other body with a f…
Inverse-square law
A law relating the intensity of an effect to the inverse squa…
15 terms
physics: gravity
tangential velocity
einstein
aristotle
brahe
sideways velocity perpindicular to the pull of gravity
described gravity in a forth dimension predicted gravity can…
The circular motions of the heavenly bodies are natural need…
complied by state of tables on the plane it's in the 1500s in…
tangential velocity
sideways velocity perpindicular to the pull of gravity
einstein
described gravity in a forth dimension predicted gravity can…
20 terms
Physics: Gravity
Why are black holes black?
Ordinary stars like our sun will die a…
Large, massive stars will die in a spe…
After the explosion, large, massive st…
Gravity is so strong light cannot escape
White Dwarf
Supernova
Neutron star
Why are black holes black?
Gravity is so strong light cannot escape
Ordinary stars like our sun will die a…
White Dwarf
30 terms
Physics-gravity
Who developed the universal law of gra…
If the distance is increased twice as…
If the distance is increase to three t…
If the distance is increased ten times…
Newton
Reduced to 1/4
Reduced to 1/9
Reduced to 1/100
Who developed the universal law of gra…
Newton
If the distance is increased twice as…
Reduced to 1/4
21 terms
Physics: Gravity
In the phrase "What goes up, must come…
What does the gravitational field do?
What is the strength of the Earth's gr…
What is acceleration
Gravity
Exerts a force that attracts objects towards itself
Acceleration of objects influenced by gravitational field
The rate of change of velocity over time
In the phrase "What goes up, must come…
Gravity
What does the gravitational field do?
Exerts a force that attracts objects towards itself
16 terms
Gravity ~ Physics
What does g represent
Gravity Acceleration
Speed Of Gravity
Formula For Distance
Acceleration due to gravity
10m/s^2
gt
D=1/2gt^2
What does g represent
Acceleration due to gravity
Gravity Acceleration
10m/s^2
10 terms
Physics - Gravity
inertia
mass
weight
equilibrium
The tendency of an object to resist any change in motion.
The amount of matter in an object.
The attractive force due to gravity.
State of balance when the forces acting on an object are equal.
inertia
The tendency of an object to resist any change in motion.
mass
The amount of matter in an object.
8 terms
Physics: Gravity
Friction acts in which direction?
Newtons third law of motion?
The strength of friction depends on?
How is friction annoying?
The opposite to movement
For every action there is an equal and opposite reaction.
1. How rough the surfaces in contact are... 2. How hard the surf…
Makes machines less efficient.
Friction acts in which direction?
The opposite to movement
Newtons third law of motion?
For every action there is an equal and opposite reaction.
12 terms
Physics Gravity
What happens in freefall?
Factors affecting Terminal Velocity
why does it exclude skydivers
Newtons Law of Gravity
the person experiences sense of weightlessness due to no reac…
surface area, viscosity, weight of object
they are not a sphere, too large, air flow is turbulent, movi…
each mass attracts the other w/ a F directly proportional to…
What happens in freefall?
the person experiences sense of weightlessness due to no reac…
Factors affecting Terminal Velocity
surface area, viscosity, weight of object
12 terms
Gravity physics
Centrifugal force
Centrifugal force will never
The only force acting on an orbiting p…
Orbiting projectile is in
A force that seems to push an object to the outside of a circle
Appear on a free body
Gravity
Free fall
Centrifugal force
A force that seems to push an object to the outside of a circle
Centrifugal force will never
Appear on a free body
8 terms
Physics gravity
g=
V=
V=
MsV^2 /R =
=Gm1m2 / R^2
sqrt GMe / r
2piR/T
Gm1m2 /R
g=
=Gm1m2 / R^2
V=
sqrt GMe / r
Physics Gravity
Kinetic friction
Projectile
Trajectory
Centripetal acceleration
The force exerted on one surface by a second surface when the…
An object shot through the air, such as football, that has in…
Path of projectile through space
The center-seeking acceleration of an object moving in a circ…
Kinetic friction
The force exerted on one surface by a second surface when the…
Projectile
An object shot through the air, such as football, that has in…
11 terms
Physics: Gravity
Fg
Gravitational Field
G Field: r > R
G Field: r < R
G•m1•m2/d^2
G•M/r^2
G•m1•m2/r^2
G•m1•m2•r/R^3
Fg
G•m1•m2/d^2
Gravitational Field
G•M/r^2
15 terms
Physics gravity
Gravitaional force and field
Why do things fall?
Changing theories
Definitions
Book page 257-262
Aristotle: things reach their natural resting position... Out of…
Explain what is meant by a force field... Region where a force a…
Force field... A region where a force acts. Strength of field va…
Gravitaional force and field
Book page 257-262
Why do things fall?
Aristotle: things reach their natural resting position... Out of…
20 terms
Physics: Gravity
FG
G
r
FG vs. r
Force of gravity between two objects
Gravitational constant
Distance between centers of objects
Downward curved line (inverse square law)
FG
Force of gravity between two objects
G
Gravitational constant
24 terms
Physics- Gravity
The greater the masses of interacting…
Tripling the distance between two obje…
If the mass of the Earth somehow incre…
A black hole is...
the greater the gravitational force between them
divides the gravitational force between them by 9
increase
remains of a giant star that has undergone gravitational coll…
The greater the masses of interacting…
the greater the gravitational force between them
Tripling the distance between two obje…
divides the gravitational force between them by 9
17 terms
Physics Gravity
Gravity
Spacetime
Newton's 1st Law of Motion:
Why doesn't the Moon crash into Earth?
Distortions in spacetime due to the presence of mass. Means b…
Spacetime is the four dimensional fabric of the Universe. It'…
Object at rest tends to stay at rest unless acted on by an ou…
The Moon has tangential velocity
Gravity
Distortions in spacetime due to the presence of mass. Means b…
Spacetime
Spacetime is the four dimensional fabric of the Universe. It'…
24 terms
physics gravity
The force of attraction between all ob…
The more distance between objects, the…
The more massive the objects are, the_…
A 10kg rock and a 20kg rock free fall…
gravity
less
more
They both hit at the same time
The force of attraction between all ob…
gravity
The more distance between objects, the…
less
25 terms
Physics gravity
What is the law if universal gravitati…
What factors determine the gravitation…
How far away would one have to travel…
Why do objects fall?
Gravity, as stated by newton, is a force that attracts every…
Mass: greater the mass, the greater the gravitational force b…
According to newtons law of universal gravitation, an object…
Because everything on earth is attracted to earth because of…
What is the law if universal gravitati…
Gravity, as stated by newton, is a force that attracts every…
What factors determine the gravitation…
Mass: greater the mass, the greater the gravitational force b…
15 terms
Physics Subject Test: Gravity
formula for... gravitational force... (New…
How is the acceleration due to gravity…
Kepler's 1st Law:... Although planetary o…
Kepler's 2nd Law:... What do you know abo…
F = gravitational force... G = constant... m1, m2 = masses... r = dist…
g is inversely proportional to the square of the distance (fr…
Elliptical (ellipse).... S = sun... P = planet
Equal areas are swept in equal times.... (In the figure, areas a…
formula for... gravitational force... (New…
F = gravitational force... G = constant... m1, m2 = masses... r = dist…
How is the acceleration due to gravity…
g is inversely proportional to the square of the distance (fr…
9 terms
Physics 11 (Gravity)
Lecture25: L01
Lecture25: L02
Lecture26: L01
Disc18: D1
C) F/2
E) Zero,... Since the space station is in stable orbit around th…
Lecture25: L01
C) F/2
Lecture25: L02
E) Zero,... Since the space station is in stable orbit around th…
10 terms
Physics Chapter 1: Gravity
Newton's law of universal gravitation
[Newton's law of universal gravitation…
[Newton's law of universal gravitation…
[Newton's law of universal gravitation…
Mass of objects 1 and 2 in kg
The gravitational force
The distance between the centres of objects 1 and 2 in metres
Newton's law of universal gravitation
[Newton's law of universal gravitation…
Mass of objects 1 and 2 in kg
24 terms
Physics: Forces, Motion, Gravity
The center of mass (equation)
Newton's first law
Newton's second law
Newton's third law,
is the average distance, weighted by mass
inertia... The law of inertia basically states the following: w…
F = ma
orces equal and opposite
The center of mass (equation)
is the average distance, weighted by mass
Newton's first law
inertia... The law of inertia basically states the following: w…
Physics: Circular Motion and Gravity
Rotation
Revolution
Axis
Period
Turning around an internal axis
Turning around an external axis
An imaginary line around through which turning takes place
The time to go around once; usually measured seconds
Rotation
Turning around an internal axis
Revolution
Turning around an external axis
49 terms
Physics Ch 13: Gravity
Geocentric
Heliocentric
Empirical
Law of Orbits
Ptolemy's theory that the earth is the center of the solar sy…
Copernicus' theory that claims the sun, not the earth was the…
Kelper's three laws - drawn from observation rather from laws…
The first law; The orbit of every planet has the shape of an…
Geocentric
Ptolemy's theory that the earth is the center of the solar sy…
Heliocentric
Copernicus' theory that claims the sun, not the earth was the…
36 terms
Physics Gravity Test
moon phases from earth
An object in elliptical orbit achieves…
Jumping into a hole through the earth,…
If NASA gave a spacecraft tangential(h…
it is closest to its central body
the earth's center
orbit the earth in an elliptical path
moon phases from earth
An object in elliptical orbit achieves…
it is closest to its central body
12 terms
physics ch 9 gravity
force of gravitational attraction
universal gravitational constant
mass of earth
radius of earth
Fg=G[(m₁m₂)/r²] ... (universal gravitational constant•(mass 1•m…
6.67x10^-¹¹
5.98x10²⁴ kg
6.37x10⁶ m
force of gravitational attraction
Fg=G[(m₁m₂)/r²] ... (universal gravitational constant•(mass 1•m…
universal gravitational constant
6.67x10^-¹¹
41 terms
Physics Gravity and Motion quiz
Describe the tide.
Black holes
The pedigree Orbit
The apogee orbit
the tide occurs when the moon is halfway between a new moon a…
A mass that has collapsed. It creates a density that is enorm…
The point at which the elliptical orbit is nearest to the cen…
The point in which the center of the orbit is farthest from t…
Describe the tide.
the tide occurs when the moon is halfway between a new moon a…
Black holes
A mass that has collapsed. It creates a density that is enorm…
33 terms
Physics Gravity Test
age of the universe
age of the earth
split between humans and chimps
first modern human
13.8 billion years old
4.6 billion years old
5-7 million years ago
200,000 years ago
age of the universe
13.8 billion years old
age of the earth
4.6 billion years old
8 terms
Physics motion and gravity
Inertial mass
Keplers second law
Gravitational mass
Gravitational field
Amount of resistance an object has to any application of force
States that an imaginary line drawn between a planet and the…
When it is increases gravitational force will also increase ;…
Region around the earth where objects experience a force due…
Inertial mass
Amount of resistance an object has to any application of force
Keplers second law
States that an imaginary line drawn between a planet and the…
10 terms
Physics Gravity Test
spring tide
inverse square law
law of universal gravitation
Newton reasons that the gravitational…
A high or low tide that occurs when the sun Earth and Moon ar…
A tide that occurs when the moon is halfway between a new Moo…
For any pair of objects, each object attracts the other objec…
Reduced by distance.
spring tide
A high or low tide that occurs when the sun Earth and Moon ar…
inverse square law
A tide that occurs when the moon is halfway between a new Moo…
8 terms
Physics Gravity Units
Vi
Vf
Average Velocity
D
m/s
m/s
m/s
m
Vi
m/s
Vf
m/s
14 terms
Physics Friction/ gravity Equations
Equation to find Ms (static Friction)
Equation to find Mk (kinetic friction)
Force of gravity (bottom of square dia…
Normal Force (top of square diagram)
Fs/Fn
Fk/Fn
Fg
Fn
Equation to find Ms (static Friction)
Fs/Fn
Equation to find Mk (kinetic friction)
Fk/Fn
Physics - Gravity and Matter (Formulas)
Displacement
Height
Equations of Motion (Downward)
Equations of Motion (Upward)
Formula (m)... y = y2 - y1
Formula (m)... h = h2 - h1
v = u - gt ... v = y0 + ut + (1/2)gt^2... v^2 = u^2 - 2g (y - y0)…
v = u + gt ... v = y0 + ut + (1/2)gt^2... v^2 = u^2 + 2g (y - y0)…
Displacement
Formula (m)... y = y2 - y1
Height
Formula (m)... h = h2 - h1
19 terms
Physics Power Set: Motion/Gravity 2
velocity
acceleration
deceleration
frame of reference
rate of change in position (plus direction)
increase in speed or velocity... "Speeding up"
decrease in speed or velocity... "slowing down"
object used to detect motion... example: the ground, the sun, et…
velocity
rate of change in position (plus direction)
acceleration
increase in speed or velocity... "Speeding up"
19 terms
Physics-Friction&Gravity&Tension
friction
balanced
unbalanced
stay still
摩擦力
平衡的
不平衡的
保持不动
friction
摩擦力
balanced
平衡的
10 terms
Physics Gravity and Space
What is a light year?
What is a galaxy?
Is the Earth's gravitational field rad…
Weight =
6,000,000,000,000 miles or 6 million million miles
A collection of stars and planets held together by gravity
Radial because the further away from the Earth you get the we…
Mass x Gravitational field strength... Mass x 10 (on Earth)
What is a light year?
6,000,000,000,000 miles or 6 million million miles
What is a galaxy?
A collection of stars and planets held together by gravity
26 terms
PHYSICS TEST CENTER OF GRAVITY
a point inside an object around which…
a point around which gravity pulls equ…
CM & CG are almost always__________
for an object to balance the pivot poi…
center of mass
center of gravity
in the same place
under the center of gravity
a point inside an object around which…
center of mass
a point around which gravity pulls equ…
center of gravity
33 terms
Physics Gravity Terms
What is Gravity?
What is weight the measure of?
How do we measure Gravity?
What is Gravity the force in between?
the force of attraction that pulls objects together
gravitational force
by using a scale
any matter in the universe
What is Gravity?
the force of attraction that pulls objects together
What is weight the measure of?
gravitational force
11 terms
Physics - space and gravity
What is the phase of the moon when the…
Who can see a lunar eclipse?
What is the phase of the moon when the…
Who can see a solar eclipse?
Full moon
Only people on the night side of the earth
New moon
Only people in the shadow of the earth
What is the phase of the moon when the…
Full moon
Who can see a lunar eclipse?
Only people on the night side of the earth
11 terms
Physics - Gravity and Mechanical Energy
Mass
Matter
Weight
Gravity
Amount of matter an object has
Something that has mass and takes up space (Kg)
The amount of mass of an object...It is dependent upon gravit…
Tendency of objects with mass to accelerate towards each other
Mass
Amount of matter an object has
Matter
Something that has mass and takes up space (Kg)
9 terms
Physics: Gravity and Freefalling Objects
gravity
gravity field
freefall
air resistance/ drag
the weakest of the four fundamental forces, a mutual attracti…
...
the natural downward motion of falling objects under the infl…
the resistance objects feel when hitting against air molecule…
gravity
the weakest of the four fundamental forces, a mutual attracti…
gravity field
...
8 terms
Semester Exam Review - Gravity - Physics 2014 - 2015
What is Newton's law of universal grav…
What factors affect GRAVITATION?
How does mass affect the force of grav…
How does distance affect the force of…
Every body in the universe attracts every other body
The mass of the two objects being considered.... The distance be…
Directly related; the greater the mass, the greater the force…
Inverse relationship; specifically, it follows the inverse sq…
What is Newton's law of universal grav…
Every body in the universe attracts every other body
What factors affect GRAVITATION?
The mass of the two objects being considered.... The distance be…
15 terms
Physics Power Set: Motion/Gravity 1
gravity
acceleration due to gravity
air resistance
terminal velocity
force that pulls all objects together... "closer the objects, th…
9.8 m/s/s on earth (if it weren't for air resistance)
force that opposes objects as they travel through the air
fastest a falling object can go due to air resistance
gravity
force that pulls all objects together... "closer the objects, th…
acceleration due to gravity
9.8 m/s/s on earth (if it weren't for air resistance)
12 terms
Physics (Centripetal Forces + Gravity)
velocity is always _____ to the circle…
If a object is moving in a circle and…
centripetal forces that could be on a…
you can go at a _______ around a circle
tangential
in a straight line (Newtons First Law)
gravity, electricity and magnets, tension, friction, normal f…
constant speed
velocity is always _____ to the circle…
tangential
If a object is moving in a circle and…
in a straight line (Newtons First Law)
10 terms
Physics rotational motion and gravity
tangential speed
rotational speed
rotational intertia
torque
the linear speed tangent to a curved path, such as in circula…
the number of rotations or revolutions per unit of time
that property of an object that measures its resistance to an…
the product of force and lever-arm distance which tends to pr…
tangential speed
the linear speed tangent to a curved path, such as in circula…
rotational speed
the number of rotations or revolutions per unit of time
14 terms
OTHS Physics 2 - Gravity
Define gravity.
Name Kepler's three laws.
State the law of orbits.
State the law of areas.
a mutual attractive force between any objects that have mass
law of orbits, law of areas, law of periods
all planets move in elliptical orbits with the sun at one focus
a line connecting the sun and a planet sweeps out equal areas…
Define gravity.
a mutual attractive force between any objects that have mass
Name Kepler's three laws.
law of orbits, law of areas, law of periods
8 terms
Physics: Chapter 9 Gravity
Law of universal gravitation
Inverse-square law
Weight
Weightless
For any part of objects, each particle attracts the other obj…
The law that relates the intensity of an effect to the invers…
the force that an object extras on supporting surface
the condition in which an object experiences no support force…
Law of universal gravitation
For any part of objects, each particle attracts the other obj…
Inverse-square law
The law that relates the intensity of an effect to the invers…
25 terms
Gravity Test Physics
gravity
Newton's apple
Newton's Law of Universal Gravitation
Size of Force Depends On
-a force of attraction between two objects (pull)... -can only s…
-false... -tried to study stars and moon
-all objects in the universe attract each other through gravi…
-masses of two objects... -distance between two objects
gravity
-a force of attraction between two objects (pull)... -can only s…
Newton's apple
-false... -tried to study stars and moon
1 of 10