NAME:
Newton's Law of Universal Gravitation
Name:_____________________________
Newton's law of universal gravitation states that any two bodies in the universe attract each other with a force
that is directly proportional to the product of their masses and inversely proportional to the square of the
distance between them
Your goal is to calculate the gravitational force exerted, by two objects, on each other.
Fg is:
M1 is:
G is:
M2 is:
R2 is:
Directions: Use the equation above to determine the force between the two objects for each problem
Example:
Mass (kg)
Distance from each other, from
center of object (meters)
Force
Object 1:
Shell
Object 2:
Floro
Work:
Do these second: Additional Problems:
Cynthia is standing on the surface of the Earth while Joe is half way to the center of the Earth (it's pretty hot down there,
and is magically still able to survive & gets cell phone service). Joe calls Cynthia & says he feels approximately double the
gravity that she does. Is he right?
 Use Newton's Law of Universal Gravitation to confirm or debunk Joe’s statement OR draw a diagram and write
an explanation.
NAME:
Graphing:
1. Graph your data in google sheets. First, make a graph of the product of the masses as one of your variables
and the force of gravity as your other variable. Sketch your graph below. Label your axes.
2. Describe the relationship between the two variables
3. Is the relationship linear, nonlinear or is there no relationship? Explain your answer.
1. Graph your data in google sheets. Next, make a graph of the distance between the two objects as one of your
variables and the force of gravity as your other variable. Sketch your graph below. Label your axes.
2. Describe the relationship between the two variables
3. Is the relationship linear, nonlinear or is there no relationship? Explain your answer.
NAME:
Do these First:
Mass (kg)
1
2
3
4
5
Work:
Object 1: Sun
1.989x1030
Object 2: Earth
5.972x1024
Object 1: Jupiter
1.898x1027
Object 2: Earth
5.972x1024
Object 1: Moon
7.3477x1022
Object 2: Earth
5.972x1024
Object 1: Pluto
Object 2: Earth
Object 1: Miss
Floro
Object 2: Earth
1.309x1022
5.972x1024
52
5.972x1024
Product of 2 masses (kg2)
*will need for graph
Distance from each
other, (meters)
1.496x1011
5.874x1011
3.844x108
7.5156x1012
1.2742x107
Force (N)