Multiple choice

Who discovered the concept of gravitational constant?

  1. Galileo Galilei

  2. Lord Henry Cavendish

  3. Samuel Pepys

  4. Michael Faraday

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Henry Cavendish is credited with the first measurement of the gravitational constant G in his famous 1798 experiment. Galileo studied gravity, but he did not determine the constant.