Question

why is the law of gravity an example of a universal law?
○ gravity exists only on the earth and the moon.
○ gravity exists for masses in a closed system only.
○ gravity exists between any two masses.
○ gravity exists between small masses in an open system only.

Explanation:

To determine why the law of gravity is a universal law, we analyze each option:

• The first option is incorrect because gravity exists throughout the universe, not just on Earth and the Moon.
• The second option is wrong as gravity is not limited to closed systems; it acts between all masses regardless of the system type.
• The third option is correct. The law of universal gravitation states that every particle attracts every other particle with a force, meaning gravity exists between any two masses, which is why it's a universal law.
• The fourth option is incorrect because gravity acts between all masses (not just small ones) and is not restricted to open systems.

Answer:

C. Gravity exists between any two masses.