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Why is it possible to shield a room against electric forces but not against gravitational forces?
Electromagnetic force and gravitational force are very different in a number of ways. Perhaps the most significant difference is that there are both positive and negative electrical charges, and north and south magnetic poles, whereas there is only one, positive form of gravity (if we could produce negative gravity, long dreamed of by Science Fiction writers, that would be tremendously useful). Electric forces interact with shielding agents (in the form of electrical conductors) and are absorbed, and do not reach the shielded interior of the room, but gravity is not absorbed in that way - it permeates everything equally. The ultimate nature of gravity is more mysterious than that of electromagnetism, and is still under debate by theoretical physicists. If it is true as suggested by Einstein that gravitational force is the result of a warping in the geometry of four dimensional space-time, you can see why it would be difficult to shield against it.
What else can I help you with?
Do 2 things have to touch in order to have force between them?
No, two objects do not necessarily have to touch in order for a force to act between them. Forces such as gravitational, magnetic, and electric forces can act over a distance without requiring physical contact between the objects.
How the earth got its shape?
The Earth's shape is due to its gravitational forces and rotation. These forces compress the planet slightly at the poles and bulge at the equator, creating an oblate spheroid shape. The Earth's shape is a result of a balance between these gravitational forces and its spinning motion.
Does the moon revolve because of gravitational forces?
Yes, the moon revolves about (orbits) the earth because of gravitational forces. However it also rotates (turns/spins) about its axis of rotation - this movement involves gravitational forces as well. ------------------------------------------------------------------------------------------------------ Gravity is involved in both the revolution and the rotation of the moon. For more on the rotation (spin) of the moon, see the link below.
Is Earth's gravitational field the same as its electromagnetic field?
No. Earth's gravitational field is due to the large mass within it; the electromagnetic field is due to the movement of the metals in its core. There are also the standard differences between a gravitational and an EM field.
What happens to the pull of gravity when the moon and sun are at right angle angles?
When the moon and sun are at right angles, the gravitational forces from each celestial body aren't aligned, which can cause variations in the pull of gravity on Earth. This can lead to phenomenon like neap tides, where tides are weaker than usual due to the counteracting gravitational forces.
A main difference between gravitational and electric forces is that electrical forces?
A main difference between gravitational and electric forces is that electrical forces can be either attractive or repulsive, depending on the charges of the interacting objects, while gravitational forces are always attractive and proportional to the masses of the objects involved. Additionally, electric forces can be shielded by conducting materials, whereas gravitational forces cannot be shielded in the same way.
What is stronger inside an atom electric forces or gravitational forces?
Electrical forces.
Can you explain how electric forces are similar to and different from gravitational forces?
Electric forces and gravitational forces are similar in that they both involve the attraction or repulsion between objects. However, they differ in the types of objects they act upon and the strength of the forces. Electric forces act on charged particles, while gravitational forces act on objects with mass. Additionally, electric forces are much stronger than gravitational forces, making them more significant in the interactions between charged particles.
Difference between electric forces and gravitational forces is that electrical forces include?
In case of electric force there are both repulsive and attractive. But in case of gravitational force, only attractive force. Electrical force between electric charges. Gravitational force between masses. In electric force we use a constant known as permittivity of the medium. But in gravitational force a universal constant known as Gravitational constant is used. Electrical force is very much greater than gravitational force.
How electric and gravitational forces are compared?
actually in our daily life experience electric force or u can say electromagnetic force is more powerful than gravitational force. electromagnetic force is about 10^59 times stronger than gravitational force... but in light of string theory or m theory gravitational force is also as strong as electromagnetic force in multidimensional universe. for more info.- watch the documentary movie 'the elegant universe' by 'brian greene
Forces which opposes gravitational forces?
the force which we are experiencing is against garavity.
A difference between electric forces and gravitational forces is that electrical forces include?
Electrical forces include both attractive and repulsive interactions between charged particles, whereas gravitational forces are always attractive between objects with mass. Additionally, electric forces are much stronger than gravitational forces, but they have a shorter range.
What are example of newton?
The newton is a unit of force. Examples of forces are gravitational force, electric forces, magnetic forces, forces caused by pressure.
Are gravitational forces identical to electrostatic forces?
No, gravitational forces are caused by the mass of an object, while electrostatic forces are caused by the electric charge of an object. While both forces follow an inverse square law, they arise from different properties of matter.
What are conservative forces?
Gravitational Forces,Magnetic Forces,Spring Forces,Electric Force....... They do not depend on the path followed,they depend on initial and final point of work.
Which force come into play when object is not in contact?
Electric and gravitational and derivatives of electric force such as Van Der Waals forces.
What universal force is the weakest electric gravitational or magnetic?
Gravitational force is the weakest universal force. It is significantly weaker than the electromagnetic and strong nuclear forces.
