Force of Gravity Lab

Force of Gravity Lab

Data Table:

Graph:

Data Analysis :

VM: As the mass increases, the force increases proportionally.

MM:  Fg=(10.222 N/kg) mass - 0.0193 Newtons

Slope: For every 1 kg the force increases by 10.222 Newtons. 

Y intercept:  When the mass (kg) is at zero the force is -.0193 Newtons.

good!

Claims/Evidence/Conclusion: In the Force of Gravity lab, we made a few observations/claims. First of all, as a class, we concluded that we all got 9.8 n/kg because we are all on Earth gravitational field and therefore should attain the same mass. However, there was a few people whose numbers were off, but that was mainly due to mathematical errors. After comparing graphs with my classmates, I realized we all had similar, if not identical graphs. They all had the same slope. This is true because the force of gravity no! not force, the grav field strength is the same  - is the same throughout the world. We then found the equation, fg=mg. In general, fg is the force of gravity and mg is the mass of the gravitational force (fg= force of gravity, m=mass, g=gravitational force).  Therefore, force of gravity is equal to the mass times the grav field strength  of the gravitational force (m times g). 

To further differentiate mass between weight, mass is the amount of matter in something, while weight is the measurement of the pull of gravity on an object. Furthermore, mass is measured by using a balance comparing between known matter and unknown matter, while weight can be measured on a scale. Lastly, the mass of an object doesn't change when an object moves, while weight changes when it moves locations. I conclude that gravities force does not change and is the same throughout Earth.

Bonus: explain why light/heavy objects hit the ground at the same time when dropped

Light and heavy objects hit the ground at the same time when dropped because gravity is the same throughout the Earth. Regardless of the objects mass, the same force of gravity is exerted. In class we tested this by dropping a ball (weighed less) and a textbook (weighed more). They were dropped at the same time and hit the table at the same time. This is becuase regardless of the objects mass, the same force of gravity is exerted. There are a few exceptions, such as air resistance. more massive objects have a greater pull of gravity (they are heavier) - so the force/mass ratio is the same, making the same effect.