Homework Help: Science: Physics: Mass

Mass, by definition, is the amount of matter within a given area. For example, think about a wooden ball and an iron ball of the same size. Obviously, it will be easier to roll the wooden ball. The reason for this is because the wooden ball has less mass.

Don't get confused! Mass and weight are not the same thing. Weight, on the other hand, is a measurement of gravity's pull on an object. For example, a baby may only weight ten pounds, while you weigh one-hundred pounds.

The amount of weight an object has can change from place to place. For example, if you weighed 100 pounds on Earth, you would weigh only 37 pounds on Mars, but a big 234 pounds on Jupiter. This is because the force of gravity is different on each planet.

Because of mass and weight, scientists and developers are always trying to make things lighter and easier to carry around. However, anti-gravitational grounds are still science fiction.

Homework Help: Science: Physics

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