Kepler's Laws and Gravity

According to Kepler, planets dont follow a circular path, but instead follow an _____________ orbit.

• Elliptical

• Concentric

• Asymmetrical

Which scientist assumed objects would fall faster if they had more mass?

• Galileo

• Newton

• Aristotle

• Plato

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Gravity depends on ____________ and ____________

• Mass

• Weight

• Distance

• Velocity

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Which Scientist tested acceleration due to gravity by creating an experiment to drop stones off of the leaning Tower of Pisa

• Einstein

• Aristotle

• Newton

• Galileo

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What does Newtons universal law of gravitation state?

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Even in space, all momentum is conserved in a collission

• True

• False

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Any projectile with momentum (no matter if it dropped, launched at an angle, or shot from a rifle) will follow an arced path. This is called _______________

• Horizontal Motion

• Projectile Motion

• Gravitational motion

• Vertical Motion

If you throw a ball into the air and it takes 7 seconds to reach its peak, how much longer will it take to fall to the ground?

• 7 seconds

• 5 seconds

• 4 seconds

• 6.5 seconds

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An object launched from the ground at 50 m/s will reach what speed before it hits the ground?

• 10 m/s

• 20 m/s

• 35 m/s

• 50 m/s

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Kepler's second law states that the path a planet will follow will sweep over equal amounts of _____________ in equal amounts of time.

• Area

• Distance

• Displacements

• Orbits