Question

which of the following are examples of the application of newtons law of universal gravitation?
select all that apply
a the attraction between the moon and the sun.
b the orbiting of the moon around the earth.
c the falling of an apple from a tree.
d the attraction between you and your desk.

Explanation:

Newton's Law of Universal Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

• Option a: The moon and the sun have masses, and there is a gravitational attraction between them as per the law.
• Option b: The moon orbits the Earth due to the gravitational force between them (Earth - moon system follows the law).
• Option c: The apple falls due to the gravitational pull of the Earth (apple - Earth system follows the law).
• Option d: You and your desk have masses, so there is a gravitational attraction between you two (though very small) as per the law.

Answer:

A. The attraction between the moon and the sun.
B. The orbiting of the moon around the Earth.
C. The falling of an apple from a tree.
D. The attraction between you and your desk.