6th Grade Mass Vs Weight by 1PUy3NC

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```									                                    6th Grade Mass Vs Weight 2009

Background Information:

Mass is the measure of the amount of matter (stuff) in an object.
Weight is a measure of the gravitational force pulling on an object.
Mass is always constant for an object and does not change, no matter where the object
is in the universe.
Weight varies depending on where the object is in relation to the Earth of other large
body in the universe. For example the weight of an object on the moon is one sixth of its
weight on Earth. This is because the moon’s gravitational force is one-sixth that of the
Earth.

Table #1
Mass on Earth         Mass on          Weight on         Weight on
Item
(g)              Moon(g)          Earth (N)         Moon (N)
2 kg
Large Book

Small Rock              5 Kg

Kayak                  50 Kg
Bucket of
10 kg
Water
15 Kg
Pet Snake
.500 Kg
500 g Weight

Analysis: On a separate sheet of graph paper construct a graph with mass in grams (Kg)
on the x axis and weight in newtons (N) on the y-axis.
1. Plot the points for the Earth data on the graph.
2. Draw a trend line for the Earth points plotted.
3. Using a different color plot the points for the moon data on your graph.
4. Again using a new color draw a trend line for the moon points plotted.
6th Grade Mass Vs Weight 2009
Activity Questions:

1.   On Earth, how many grams of mass does it take to produce a force of 1 Newton?
2.   What would the weight of an object that is 4N on the earth be on the moon?
3.   If an object had a mass of 80Kg on e Earth what would its mass be on the moon?
4.   Does the mass of the an object change when you go to the moon? Explain.
5.   Does the weight of the an object change when you go to the moon? Explain.
6.   What instrument is normally used to measure mass? Weight? Explain why.

Go to the NASA web site at http://www.exploratorium.edu/ronh/weight/

1. Enter your weight in Kg
2. Click on each planet in the solar system to find your weight on the planet.
3. Enter your weight for each planet below and complete the sentence using the
words more or less and then explain why the weight is more or less.

Weight on EARTH=________________

Mercury=______________ which is _________ than earth because

Mars=______________ which is _________ than earth because

Jupiter=______________ which is _________ than earth because

Saturn=______________ which is _________ than earth because

Uranus=______________ which is _________ than earth because

Neptune=______________ which is _________ than earth because

Pluto=______________ which is _________ than earth because

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