Lab - Universal Gravitational Constant 1. Read Newton's Law of Gravitation 2. Then Go to: https://phet.colorado.edu/sims/html/gravity-force- lab/latest/gravity-force-lab_en.html. Spend a few moments and familiarize yourself with the simulation. Force on mass 2 by mass 1 = 22.7 N Force on mass 1 by mass 2 = 22.7 N 4.2 kim mass 1 mass 2 Mass 1 Mass 2 Force Values Distance 1 billion kg 6 billion kg Constant Size Gravity Force Lab: Basics )PhET : Part I - Determine the Universal Gravitational Constant, G. We already know what this constant is, but let's see how close you can get to the known value of 6.67 x 10 -11 Nm'/kg. mim2 Use the up/down arrow for each mass (ml and m2) F = G d2 Slide the masses to select distance and record the Force. Record the values in the table below. Complete 5 more trials (for a total of 6 trials) varying the masses and distances and record your values in the table. Use the Law of universal gravitation equation to calculate for each trial, then find the average G value and compare to the known (published) value.Note: Billion Kg = 1 x 10' Kg and I Km = 1,000 m. Make sure all of your base units are m for distance and Kg for mass. Trial Mass 1 Mass 2 Distance Force Gravitation # (billions of (billions of (Km) (N) Constant, G Kg) Kg) (Nm'/kg?) 1 2 3 4 5 6 Average value of G Published Value of G How do the values compare? What is your percentage error? (Show ALL your work)Now use the simulation to help you answer the following (Circle or highlight the correct answer from the choices) 1. Gravitational force is always attractive/repulsive. 2. If a gravitational force exists between two objects, one very massive and one less massive, then the force on the less massive object will be greater than /equal to / less than the force on the more massive object. 3. As the distance between masses decreases, force increases/decreases. 4. Doubling the mass of both objects would result in the change in force of 4 times / 2 times / no change / 1/4 times / 1/2 times 5. Doubling the distance between two objects will change the force of 4 times / 2 times / no change / /4 times / 1/2 times Part II The mass of the Moon is 7.35 x 10" kg and the mass of the Earth is 5.97 x 1024 kg. The Moon's orbit distance is 3.84 x 10* m. Calculate the gravitational force on the Moon by the Earth