Please go to the website: https://phet.colorado.edu/sims/html/gravity-force-lab/latest/gravity-force-lab_en.html then follow all the instructions given in the below questions to do the Lab: Gravity work. Please don't skip any questions and answer all the following questions and fill all answers in the blank table.

Lab: Gravity

Purpose:

• To verify Newton's Law of Universal Gravitation
• To determine the Universal Gravitational Constant, G

Equipment

• PhET Simulation: Gravity Force Lab

Introduction

for this lab we will use the Gravity Force Lab PhET Simulation to investigate what factors affect the gravitational force between two objects and experimentally determine the Universal Gravitational constant, G.

The mathematical form of the Law of Universal Gravitation is

M M 2 F : T 2Force on m2 by m1 = 1.67 x 107 N Force on m1 by m2 = 1.67 x 107 N m1 m2 D motors 1 2 6 9 10 ULL Mass 1 Mass 2 Force Values 100 kg 400 kg O Decimal Notation 1000 1000 O Scientific Notation O Hidden Constant Size C