what is the difference between gravity and electromagnetism?
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The biggest difference is that gravity is an attractive force while electromagnetism is both an attractive and repelling force. Gravity happens between two objects depending on their masses, while electromagnetism is dependent on the objects' electric charges and the distance between them.
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Electromagnetic waves. Electromagnetic (EM) waves are changing electric and magnetic fields, transporting energy and momentum through space. EM waves are solutions of Maxwell's equations, which are the fundamental equations of electrodynamics. EM waves require no medium, they can travel through empty space.
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1 Answer. Charlie P. Gravity is weaker force than Electromagnetism. Gravitational Forces are usually increased when a larger mass is accumulated, whereas Electromagnetic Forces are made when there are slight imbalances caused by small separations of charge.
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Both electric and magnetic fields are the consequence of the attraction and repulsion of electric charges. However, a magnetic effect is caused by moving electric charges while an electric field is caused by stationary charges.
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Acceleration can cause the feeling of gravity by pushing you toward the ground but it is not gravity. Actually acceleration and gravity is same, no difference. But acceleration is general term while gravity is specific term used for the gravitational acceleration of earth.
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Because there is only one kind of mass, gravitational forces are always attractive forces. Gravity will only make objects fall down toward the Earth. ... In contrast, electric forces can be either attractive or repulsive. There are two types of charge, positive and negative.
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The real difference is that physics is a science, and maths is not. Physics therefore works on the principle of formulating a hypothesis, testing it, and discarding it if disproven. Maths works on the principle of playing around, sometimes with an aim (perhaps to prove something you suspect), sometimes without.
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These changing fields form electromagnetic waves. Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
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how does a magnetic field differ from a gravitational field? Gravitational fields are determined only by the mass ( or mass-energy) of a body. ... magnetic fields are produced by charged particles in motion, and depend on the charge and velocity of these particles, but not on their mass.
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Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not.
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Coulomb force is a force from charge — negative and positive. Gravitational force is a force from mass — positive and positive. ... For example, the electrical force of repulsion between two electrons is 42 orders of magnitude larger than the gravitational attractive force between these two electrons.
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Electric forces are created by and act on, both moving and stationary charges; while magnetic forces are created by and act on only moving charges.
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EM waves are made up of oscillating electromagnetic and magnetic fields, whereas mechanical waves are just fluctuations in a medium. EM waves travel at the speed of light 3x10^8 m/s, whereas mechanical waves travel slower.
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They both act between two bodies without any means of contact. However gravitational force acts on mass while the electric force acts on charge. Gravitational force are only attractive while electric field can be attractive/repulsive. Electric field is much stronger than gravitational field.
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The basic difference between g and G is that 'g' is the Gravitational acceleration while 'G ' is the Gravitational constant. The value of g changes with altitude while the value of G remains constant. Gravitational acceleration is the vector quantity and gravitational constant is the scalar quantity.
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If you follow Einstein's theory of general relativity then gravity has no direct effect on electro magnetic waves itself. Gravity however affects space time itself warping it towards the gravity source. ... From the point of the wave however, it follows a straight path and is not affected by gravity at all.
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FYI: General Physics is Algebra-based and the other is Calculus-based. General physics is meant for pre-medical field people. Physics w/ Calculus is meant for engineers and B.S. degrees in science.