Which statements describe Newton and the law of universal gravitation? Check all that apply.

Question

Newton believed that gravity was a force.
The law of universal gravitation states that gravity is the force that keeps birds in flight.
The law of universal gravitation offers a mathematical explanation for the attraction between the moon and Earth.
Newton was the first to have the idea that gravity is everywhere.
Gravity is measured in masses.

Answer 1

Here are the statements that correctly describe Newton and the law of universal gravitation:

1. Newton believed that gravity was a force. (True)
2. The law of universal gravitation states that gravity is the force that keeps birds in flight. (False - the law describes the gravitational attraction between masses, such as Earth and objects, not specifically birds.)
3. The law of universal gravitation offers a mathematical explanation for the attraction between the moon and Earth. (True)
4. Newton was the first to have the idea that gravity is everywhere. (True in the sense that he formulated the law of universal gravitation extensively, but the concept of gravity existed before him.)
5. Gravity is measured in masses. (False - gravity is a force measured in newtons; mass is measured in kilograms.)

So, the correct statements are 1, 3, and 4.