Unit 5 Review (Physics) Flashcards


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1
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Which scientist is responsible for measuring the Universal Gravitational Constant turning the Law of Gravity into:

F=Gm1m2 / d2

Henry Cavendish

2

What is the order of their contributions to science?

  • Aristotle
  • Cavendish
  • Galileo
  • Newton
  1. Aristotle
  2. Galileo
  3. Newton
  4. Cavendish

3

Who coined the concept of an object seeking its “Natural place”?

Aristotle

4

Which one of these was Newton’s idea?

  • Describing how gravity is a warp in space time
  • Determining the constant necessary for an equation to describe gravity
  • Realizing the laws on Earth applied to celestial bodies (other planets and stuff)

Realizing the laws on Earth applied to celestial bodies (other planets and stuff)

5

What is the gravitational force between two 5,000 kg asteroids whose centers are separated by 100 m?

1.67 x 10-7N

6

The original experiment to find the Universal Gravitational constant (G) was done by hanging two 158 kg cannonballs 0.23 m apart. What was a possible source for error in this experiment?

Did not measure the distance from the center of the mass