Q:

What does "E=mc2" mean?

A:

Quick Answer

Albert Einstein's formula "E=mc2" means energy equals the mass of an object multiplied by the speed of light squared. His theory means that the mass of an object, no matter how small, can be transformed into a tremendous amount of energy.

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What does "E=mc2" mean?
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Full Answer

Nuclear energy proves this theory since it uses a small amount of mass and converts it into an enormous amount of energy that can be used to power millions of homes. Some of this energy can even be converted to mass to create a new particle. The speed of light squared is a large number, and it is the secret behind the power of this formula.

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Related Questions

  • Q:

    What is the centripetal force formula?

    A:

    The formula for centripetal force is: (f) = mass of the object (m) * tangential velocity (v) squared / distance from the center or radius (r). Centripetal force is measured in Newtons, and one Newton equals 0.225 pounds, according to Education Portal.

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  • Q:

    What does gravitational potential energy depend on?

    A:

    Gravitational potential energy depends on the mass of the object, acceleration because of gravity and the height of the object from a zero position, which is typically the ground or surface where the object is resting. This is because potential energy is the amount of energy stored in an object due to its position and represents the potential for a force, such as gravity, to do work on the object.

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  • Q:

    What is gravitational energy?

    A:

    Gravitational energy is the movement of an object or mass that is caused by the pull of gravity. This is caused on Earth by the strong attraction of all other masses to be drawn back to Earth's center. An example of gravitational energy is water from a river tumbling over a cliff to form a waterfall.

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  • Q:

    What is the formula for gravitational potential energy?

    A:

    An object's gravitational potential energy is equal to the product of the object's mass times the gravitational field strength times its height (PEgrav = mass * gravity * height). The strength of Earth's gravitational field is 9.8 meters per second, and height is measured starting from a specified surface.

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