# Effects of gravity on different elements

• JesseTH
In summary, a 100lb ball of lead would roll down a ramp at the same speed as a 100lb ball of copper. There would be a small difference in force while they are rolling down, but it would be hard to detect.
JesseTH
Hi,

Hopefully this is the right place for this question.

I'm wondering whether a 100lb ball of lead would roll down a ramp (assuming a 35 degree slope) at the same speed as 100lb ball of copper.

Would there be a difference in force while they are rolling down?

Thanks,

Might be interesting to watch...

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Thanks CWatters..

I do understand that with no 'interference' the two would fall at the same speed.

But would the larger contact area of the copper ball on the ramp surface be enough to affect results (here on earth)?

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This kind of experiment has been done many times in many different ways, going back to Galileo. The "effect of gravity" (acceleration due to gravity) depends only on the mass of the object, not the material it is made of.

JesseTH said:
Thanks CWatters..

I do understand that with no 'interference' the two would fall at the same speed.

But would the larger contact area of the copper ball on the ramp surface be enough to affect results (here on earth)?

Any difference could potentially change the results but it might be a small. If the balls are different sizes (which they would be as they have different densities) then rolling resistance or air drag might be different and that would change the results.

If you eliminate every possible difference (same mass, size and rolling resistance and EDIT: Moment of inertia) so that they are the same except for the element that are made from then no, they would both roll down at the same speed.

How small a difference counts as different? Both lead and copper are electrical conductors and they have different conductivities. On Earth they would be moving through the Earth's magnetic field and that might affect the results - but it would be an exceptionally small effect that is hard to detect.

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## What is gravity and how does it affect different elements?

Gravity is a fundamental force that exists between all objects with mass. It causes objects to be attracted towards each other. The strength of gravity depends on the mass and distance between objects. Different elements have different masses, so they are affected differently by gravity.

## How does gravity affect the behavior of gases?

Gravity affects gases by causing them to be denser near the surface of the Earth due to the pull of gravity. This can lead to the formation of layers in the atmosphere, with heavier gases like carbon dioxide and oxygen being closer to the surface while lighter gases like hydrogen and helium rise higher.

## What is the relationship between gravity and the density of liquids?

The density of a liquid is directly related to the strength of gravity. The stronger the force of gravity, the more tightly packed the molecules are, resulting in a higher density. This is why liquids on Earth have a higher density than those on the moon, where the force of gravity is weaker.

## How does gravity affect the melting and boiling points of elements?

Gravity has a negligible effect on the melting and boiling points of elements. These properties are primarily determined by the strength of the bonds between atoms, not the force of gravity. However, the pressure caused by the weight of an object can affect the boiling point of a liquid.

## Can the strength of gravity affect the properties of an element?

No, the properties of an element are determined by its atomic structure and the interactions between its atoms, not the strength of gravity. However, the strength of gravity can indirectly affect an element's properties by influencing its physical state, such as its density or boiling point.

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