Transcript Gravity - Lauren - s3.amazonaws.com

Gravity
By: Lauren Hinshaw
Universal Gravity
Universal gravity is the force of gravity on every object to
an extent.
Example: The earth has a bigger gravitational pull on us,
because the earth has a greater mass. We have a smaller
mass compared to the earth, so our gravitational pull is
smaller to the earth.
Question: Does someone who is bigger than me like a
basketball player, would he have a greater gravitational
pull?
Weight
• Weight is the amount of gravity upon an
object. Example: If I weigh 120 lbs. then that
means that there is 120 Ibs. pressuring on my
body.
• Gravity is measured in Newtons.
Mass
• Mass is the amount matter in an object.
• Mass is measured in SI unit of mass and
kilograms.
• 1 kilogram = about 400 pennies.
9.8m/s2
• 9.8m/s means that when an object is falling,
it's velocity increases 9.8m/s in one second.
• So if you fell for 9.8m/s in one second, you
would fall 19.6m/s in two seconds! And so on.
• I've realized that its kind of like layers of
blankets. The more the blankets the heavier it
will be.
Horizontal motion and
• If you throw a ball horizontally at the same
time asVertical
dropping a ball vertically,
they will land
motion
at the same time. Why? The gravity is still
forcing the horizontally thrown ball towards the
ground. So it will land at the same time.
• If you jump across a big gap( if its big enough)
you will fall a little forward and straight down.
You will eventually run out of horizontal
motion.