The correct answer is: "Gravitational force". Therefore, the definition is: "The attractive force that acts between all objects is the gravitational force". <span> Isaac Newton (Who was a physicist, mathematician, philosopher and inventor) was the one who proposed "The law of universal gravitation", which states that the force of gravity is proportional to the product of two masses and inversely proportional to the square of the distance between its centers of mass.</span>
The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength.
