physics

Aim
The aim of my experiment is to measure the earth´s gravitational field strength, which is also the acceleration due to gravity. This involves mass, which is the amount of matter an object contains and weight which is the force of gravity pulling down on a object with a mass. Mass is measured in Kg and weight is measured in Newton´s. Gravity is the weakest of the four fundamental forces, yet it is the dominant force in the universe for shaping the large scale structure of galaxies, stars, etc.
The earth´s gravitational field strength is calculated by the weight (N) / Mass (Kg), therefore the earth´s gravitational field strength (g) is measured in (N/Kg). As an object is in free-fall it accelerates at the rate of g. The gravitational field strength is measured by doing an experiment with a trolley rolling down a tilted runway with the force of g causing it to accelerate down the slope.
Hypothesis
Isaac Newton firstly discovered gravity when an apple fell on his head. He then...