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Gravity What is it? es/cych/apollo%2010 /story/hoi/ball3.html es/cych/apollo 10/story/hoi/ball.html.

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Presentation on theme: "Gravity What is it? es/cych/apollo%2010 /story/hoi/ball3.html es/cych/apollo 10/story/hoi/ball.html."— Presentation transcript:

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2 Gravity What is it? http://www.fi.edu/piec es/cych/apollo%2010 /story/hoi/ball3.html http://www.fi.edu/piec es/cych/apollo 10/story/hoi/ball.html

3 Gravity is … A natural force that pulls all objects toward the center of the earth.

4 WHAT IS A FORCE? A pull or a push on an object

5 Which do you think would fall first? A bouncy ball Or a marble Try It!

6 They fall at the same rate of speed, but the marble has more mass (weight) and so gravity makes it fall harder! Gravity has a stronger force on things with more mass!

7 It takes a force to overcome gravity! Throw a bean bag in the air and then… Throw a basketball in the air. Which one was harder to throw?

8 You had to use more force to throw the basketball because it has more mass (weight)

9 This powerpoint was kindly donated to www.worldofteaching.com www.worldofteaching.com http://www.worldofteaching.comhttp://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.


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