What is the Difference between Mass and Weight?
By Taylor T.
2011
Weight

Weight is the measure of the force of gravity between the object and the surface it stands on. If a person stood on a scale, the scale would measure their weight. Gravity is what gives something weight. That is why in outer space your weight because gravity changes. Weight decreases the further away you get from the earth. A person's weight changes due to the growing process of their body leading to heavier weight. Though the weight of a tablet would stay the same since it does not grow in weight. But no matter what type of object a thing is, the weight changes due to gravity.


Mass

Mass is a measurement of how much matter an object has. Matter is every object around you because it is anything that takes up space .The larger the matter is of an object the greater the mass will be. Though if something is the same size like a bowling ball and a balloon, which would have more mass?

taylort616bowlingball_balloon.jpg
This picture shows two item to help you realize the meaning of mass.


Which do you think has more mass? The mouse or the truck?


taylort616_truckmouse.jpg
This picture has two objects to help you realize what the meaning of mass is.

A truck is the answer.

Isaac Newton

Gravity is a pulling force that works across space. Isaac Newton discovered the law or truth about gravity in the late 1600s. Newton was an English scientist.After his discovery it helped realize the difference between mass and weight.


isaac_newton.jpg
This is a portrait of Isaac Newton.


Gravity

Gravity is a force that brings objects with mass toward the center of the earth. If you were to go to the moon you weight would change because the pull of gravity is weaker there than on Earth. On the moon, a person’s weight is 1/6 less than your weight on earth because the tug on gravity is only 1/6 as strong as it is on Earth. On Earth gravity would bring you down.earth_and_moon_study.jpg

Gravity is stronger on a larger size of mass. Though if you had a plate of brownies on a table, the table is a force against gravity so the brownies don't fall to the ground. If you took away the table, the force of gravity would make the plate of brownies fall to the ground.

taylort616_sciencewithbrownies.jpg

Your mass though would stay the same because you are still made up of the same amount of matter. Gravity pulls on objects with matter. The more matter an object contains the more gravity pulls on it. If you were on a slide, gravity would bring you down it. If you jumped in the air, gravity would bring you down.


If you had a Ping-Pong ball and a soccer ball which would gravity pull on more? The soccer ball since it has more matter and mass. Another example is that if you had an empty jar, it would be very light. Though if you added some soup into the jar it would be heavier because gravity is pulling on it more.


What is the Difference between Mass and Weight?

From what you learned you probably can now see the difference. Well mass is the measurement of the amount of matter something has and weight is a measure of the force or gravity between the object and the surface it stands on. This means that weight changes due to the cause of gravity but mass never does. You as a person can not change in mass unless you are growing. If you went into outer space you would see that you don't change in size. Though you weight would be different because without gravity you become lighter since no force is pulling you.



Glossary:
Effect: The action that occurs due to some other action

Isaac Newton: An English scientist who discovered the law of gravity

Gravity: a force that brings objects with mass toward the center of the earth

Mass: a measurement of how much matter an object has

Matter: Anything that takes up space

Weight: the measure of the force of gravity between the object and the surface it stands on

Citations

mass." Encyclopedia Britannica. Encyclopedia Britannica Online School Edition.

Encyclopedia Britannica, Inc., 2011. Web. 12 Sept. 2011.

<http://school.eb.com/eb/article-9051285

Getting to Know: Gravity. Prod. 100% Educational Videos. 100% Educational Videos, 2000. Discovery Education. Web. 22 September 2011. <http://www.discoveryeducation.com/>.

Editors of Time-Life Books Understanding science and nature. Physical Forces.
Alexandria, VA Time-Life. 1992.

errod, Robin. The Way Science Works. New York, NY. DK publishing, 2002.print.