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Unit 5 Review (Physics)

1.

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