Register to reply

Attraction due to charge particles and attraction due to gravity

by rajeshmarndi
Tags: attraction, charge, gravity, particles
Share this thread:
rajeshmarndi
#1
Jan17-14, 10:31 PM
P: 176
Why we don't question attraction of a positive and negative charge particles but we question attraction due to gravity.

We say we do not understand gravity or what causes gravity or attraction. Isn't the attraction due to gravity similar to the attraction or repulsion between charged bodies.

I am aware attraction/repulsion due to charge is due to quarks which too are also charge particles.
Phys.Org News Partner Physics news on Phys.org
UCI team is first to capture motion of single molecule in real time
And so they beat on, flagella against the cantilever
Tandem microwave destroys hazmat, disinfects
HallsofIvy
#2
Jan17-14, 10:36 PM
Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 39,682
Quote Quote by rajeshmarndi View Post
Why we don't question attraction of a positive and negative charge particles but we question attraction due to gravity.
what makes you think we don't? There are theories of electro-magnetic force just as there are theories of gravity.

We say we do not understand gravity or what causes gravity or attraction. Isn't the attraction due to gravity similar to the attraction or repulsion between charged bodies.

I am aware attraction/repulsion due to charge is due to quarks which too are also charge particles.
Drakkith
#3
Jan17-14, 10:51 PM
Mentor
Drakkith's Avatar
P: 12,006
Quote Quote by rajeshmarndi View Post
We say we do not understand gravity or what causes gravity or attraction. Isn't the attraction due to gravity similar to the attraction or repulsion between charged bodies.
Similar, but not exactly the same. For example, gravity only has one "charge", whereas the EM force has two charges. This causes all objects to attract each other via gravity whereas charged objects will repel or attract each other based on their mutual charges.

I am aware attraction/repulsion due to charge is due to quarks which too are also charge particles.
That's only true for particles that are made up of quarks. Leptons, which includes particles such as the electron and muon, are not made of quarks and are still electrically charged.

jtbell
#4
Jan17-14, 11:28 PM
Mentor
jtbell's Avatar
P: 11,868
Attraction due to charge particles and attraction due to gravity

Quote Quote by rajeshmarndi View Post
We say we do not understand gravity or what causes gravity or attraction.
Have you heard of a theory called "general relativity"?

Isn't the attraction due to gravity similar to the attraction or repulsion between charged bodies.
No, it's not, except as an approximation. (a very good approximation under "everyday" circumstances)
rajeshmarndi
#5
Jan18-14, 12:37 AM
P: 176
Electrical charge is due to charge characteristic of a particle and fundamentally attract or repel. So, is gravity also some characteristic of particles or it is just due to the curvature of space created by particles/matter.
adjacent
#6
Jan18-14, 12:41 AM
PF Gold
adjacent's Avatar
P: 1,516
Quote Quote by rajeshmarndi View Post
So, is gravity also some characteristic of particles or it is just due to the curvature of space created by particles/matter.
Read This
Malverin
#7
Jan20-14, 10:05 AM
P: 134
Quote Quote by Drakkith View Post
Similar, but not exactly the same. For example, gravity only has one "charge", whereas the EM force has two charges. This causes all objects to attract each other via gravity whereas charged objects will repel or attract each other based on their mutual charges.



That's only true for particles that are made up of quarks. Leptons, which includes particles such as the electron and muon, are not made of quarks and are still electrically charged.
That is true

This causes all objects to attract each other via gravity
but not always.
Two bodies can get away from each other, due to gravity only.
For example,

If we have a stone ball and a helium spherical balloon and they have the same diameter.
And they are surrounded with heavier fluid than Helium.
Air for example.
And let there be only this two bodies and the fluid around them. No other masses.
Due to Gravity, Helium balloon will not get closer to the stone ball, but exactly the opposite -
it will fly away.

Something like this
pikpobedy
#8
Jan20-14, 10:28 AM
P: 39
Gravitational attraction is on the order of 10^37 times weaker than electrostatic attraction.
Both are inverse square laws.


Register to reply

Related Discussions
Attraction of two charged particles Introductory Physics Homework 6
Attraction of two charged particles Classical Physics 1
Electrostatic force of attraction between two particles Introductory Physics Homework 3
Attraction and repulsion for identical particles High Energy, Nuclear, Particle Physics 5
Quantum attraction by exchange of particles Quantum Physics 1