Gravity & Mass: Question about Affecting Something with No Mass

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SUMMARY

Gravity affects all objects, including those without mass, such as photons. According to general relativity, gravity influences the curvature of spacetime, causing all entities to follow geodesic lines. This principle is evident in phenomena like gravitational lensing, where light is bent around massive objects like the sun. Therefore, even hypothetical objects with no mass would still be influenced by gravitational forces.

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  • Understanding of general relativity
  • Familiarity with the concept of geodesics in curved spacetime
  • Knowledge of massless particles, specifically photons
  • Basic principles of gravitational lensing
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  • Research the principles of general relativity and its implications on gravity
  • Study the concept of geodesics and their role in spacetime
  • Explore the behavior of massless particles in gravitational fields
  • Investigate gravitational lensing and its applications in astrophysics
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Students of physics, astrophysicists, and anyone interested in the fundamental principles of gravity and its effects on massless entities.

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First, I am new here, I did a quick search but didn't find the answer I was looking for so if I missed it don't be impolite :)

I have a "small" question about gravity.
Would it affect something that had no mass?

Just a odd/weird example: If I had a car without mass, would gravity affect it?
 
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Everyrhing is affected by gravity because it tends to follow geodesic lines in curved spacetime, regardless of (rest) mass. BTW, ordinary objects, which contain fermions in their composition cannot be massless.
 
gravity affects all objects even those particles without mass ( for example, the photon) we can see this in gravitational lensing. When there is an eclipse of the sun, we can see that photons (Light) are attracted by the suns gravitational field :D
 

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