Study sets matching "physics gravity"

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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…
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…
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
Physics: Gravity
weight
mass
weight=
mass=
SI unit is Newton; the force of an object due to gravity
the quantity of matter in an object
mass x free fall acceleration
weight/free fall acceleration
weight
SI unit is Newton; the force of an object due to gravity
mass
the quantity of matter in an object
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
Physics Gravity
Source
Object
Distance
Force of Gravity
The source of the gravitational field
the object of mass (m) in the gravitational field that experi…
The length from the center of the source to the center of the…
the pull that acts
Source
The source of the gravitational field
Object
the object of mass (m) in the gravitational field that experi…
6 terms
Physics gravity
Mass of object
Mass of object b and distance are unch…
Mass of a triples, b doubles distance…
Mass of objects unchanged distance *3
A*10
Fg*10
Fg3 fg2... Fg*6
Fg1/3^2(doubled) fg1/9
Mass of object
A*10
Mass of object b and distance are unch…
Fg*10
Gravity - Physics
Isaac Newton
Henry Cavendish
Universal Gravitation Constant
Gravitational Force (aka. gravity)
determines the relationship between mass and gravity
solved Isaac Newton's equation, determined the value of "k"
represents the strength/value of gravity in the universe
an effect which causes any two masses to be pulled toward eac…
Isaac Newton
determines the relationship between mass and gravity
Henry Cavendish
solved Isaac Newton's equation, determined the value of "k"
11 terms
Gravity ~ Physics
Aristotle
Ptolemy
Copernicus
Brahe
Earth is the center of the universe; geocentric
attempted to account for retrograde
Sun is the center of the universe; heliocentric
made precise measurements of the heavens
Aristotle
Earth is the center of the universe; geocentric
Ptolemy
attempted to account for retrograde
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.
33 terms
Physics Gravity
If an object accelerates
If there is a change in velocity
At a point the velocity
Centripetal force
There must be a force ... Direction of A is the same as directio…
There is a change in acceleration and force
Is tangent to the circle ... Perpendicular to the radius
Circle... Force toward the center
If an object accelerates
There must be a force ... Direction of A is the same as directio…
If there is a change in velocity
There is a change in acceleration and force
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
5 terms
Physics: Gravity
Copernicus
Galileo
Law of inertia
Friction
The sun is at the center of the universe
Ball rolling to the other side will be at its original height
1. Continues moving at the same velocity unless acted upon by…
1. Comes from microscopic bumps ... 2. Always acts the opposite…
Copernicus
The sun is at the center of the universe
Galileo
Ball rolling to the other side will be at its original height
Gravity- Physics
Early humans
Newton
Isaac Newton
Isaac Newton
Who discovered Gravity?
Who discovered that Gravity is universal?
-Formulated ideas based on Galileo's earlier work... -Understood…
Theorized that the same set of laws apply to both celestial a…
Early humans
Who discovered Gravity?
Newton
Who discovered that Gravity is universal?
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…
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
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
5 terms
Physics - gravity
Newtons law
Force field
Gravitation potential
Gravitational potential difference
Force proportional to product of masses and inversley to dist…
An area where an object experiences force.
The work done to bring a unit mass from infinity to a point.
The difference between two gravitational potentials ina field.
Newtons law
Force proportional to product of masses and inversley to dist…
Force field
An area where an object experiences force.
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.
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
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…
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
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
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'…
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…
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…
physical gravity
orbit
rotation
equator
hemisphere
the path an object takes as it revolves around a star, plane,…
one whole spin of an object around its axis
zero degrees latitude; the imaginary line that separates the…
half of the earth
orbit
the path an object takes as it revolves around a star, plane,…
rotation
one whole spin of an object around its axis
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…
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…
14 terms
Physics Unit 6 Gravity
Copernicus
gathered data
Kepler's 3 laws of planetary motion
F = Gm1m2/d^2
first person to suggest a heliocentric solar system
main contribution Brahe made to astronomy
1) elliptical orbits 2) equal area law 3) T^2 is proportional…
what is Newton's universal law of gravitation?
Copernicus
first person to suggest a heliocentric solar system
gathered data
main contribution Brahe made to astronomy
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
Physics 2: Gravity
Mass
Newton
Friction
Inertia
The amount of matter in an object. (Matter is all of the "stu…
A unit of measure that equals the force required to accelerat…
The force that opposes the motion of one surface as it moves…
The tendency of an object to resist any change in its motion
Mass
The amount of matter in an object. (Matter is all of the "stu…
Newton
A unit of measure that equals the force required to accelerat…
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…
33 terms
Physics --Rotational Motion and the Law of gravity
rotational motion
radian
angular displacement
angular speed
motion of a body that spins about an axis.
an angle whose arc length is equal to its radius, which is ap…
The change in the angle as an object rotates.
the rate at which a body rotates about an axis, usually expre…
rotational motion
motion of a body that spins about an axis.
radian
an angle whose arc length is equal to its radius, which is ap…
7 terms
SAT II Physics - Gravity
Force of Gravity
Acceleration due to Gravity
Gravity on Earth
Gravity Field of a Planet
(Fg) = G(m¹m²/r²)
Acceleration = Magnitude of Gravity Field
(Fg) = mg
g = GM/r²
Force of Gravity
(Fg) = G(m¹m²/r²)
Acceleration due to Gravity
Acceleration = Magnitude of Gravity Field
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)
14 terms
Physics Chapter 9- Gravity
Newton's Law of Universal Gravitation
Gravitation Formula
Bigger distance means the force of att…
Inverse-Squared law
-Every object pulls on every other object with a gravitationa…
Force=mass of object 1 * mass of object2... /distance^2
-If an object moves away by 2d, then the force drops by 4.
-Gravitational Forces between 2 objects depends on how far th…
Newton's Law of Universal Gravitation
-Every object pulls on every other object with a gravitationa…
Gravitation Formula
Force=mass of object 1 * mass of object2... /distance^2
20 terms
Gravity- Physics W
Aristotle
Newton
Fg ~ m1*m2
Fg~1/d^2
Everything is made of 4 elements (fire, water, air, earth)... -r…
(2,000 yrs later)... 1) Gravity is a force... 2) Attractive force... 3…
-If mass of one object increases by 2, then Fg increases by 2…
If distance increases by factor of 2(x2), then Fg decreases b…
Aristotle
Everything is made of 4 elements (fire, water, air, earth)... -r…
Newton
(2,000 yrs later)... 1) Gravity is a force... 2) Attractive force... 3…
Physics Gravity Quiz
Aristotle
Newton
Fg ~ m1*m2
Fg∞1/d^2
Everything is made of 4 elements (fire, water, air, earth)... -r…
1) Gravity is a force... 2) Attractive force... 3) Force exists bet…
-If mass of one object increases by 2, then Fg increases by 2…
If distance increases by factor of 2(x2), then Fg decreases b…
Aristotle
Everything is made of 4 elements (fire, water, air, earth)... -r…
Newton
1) Gravity is a force... 2) Attractive force... 3) Force exists bet…
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
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…
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
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