## Does mass change with elevation?

For objects near the earth, the sum of the mass of all the particles is simply the mass of the earth and the distance is then measured from the center of the earth. Since the gravitational constant (g) depends on the square of the distance from the center of the earth, the weight of an object decreases with altitude.

## Are you heavier closer to sea level?

You’d lose much more weight from the exercise alone…. Places to avoid if you want to lose weight under the gravitational plan would be Earth’s poles, for a couple of reasons. One is that at the poles, even at sea level, you’re about 13 miles closer to the Earth’s center than you are at the Equator.

## Does mass change in different places?

Mass is the amount of matter in an object and does not change with location. The only way to change the mass of an object is to take away part of the object or add to it. An object with a mass of one kilogram (kg) has the same mass on another planet, like Jupiter.

## What mass does not change?

The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object. Since mass doesn’t change, when the kinetic energy of an object changes, its speed must be changing. Special Relativity (one of Einstein’s 1905 theories) deals with faster-moving objects.

## Does light have infinite mass?

Near the speed of light, the mass is so high that it reaches infinity, and would require infinite energy to move it, thus capping how fast an object can move. The only reason light moves at the speed it does is because photons, the quantum particles that make up light, have a mass of zero.

## Why do Photons have no mass?

Photons have no REST mass, because they only exist travelling at the light velocity c. However, they do have a mass m (not a rest one !) given by the equation mc2 = h.nu, and there momentum is mc = h.nu/c as it should be.

## How can a photon have momentum but no mass?

Light indeed carries energy via its momentum despite having no mass. In contrast, for a particle with no mass (m = 0), the general equation reduces down to E = pc. Since photons (particles of light) have no mass, they must obey E = pc and therefore get all of their energy from their momentum.

## Does light have mass 2020?

According to theory it has energy and momentum but no mass, and this is confirmed by experiment to within strict limits. Even before it was known that light is composed of photons, it was known that light carries momentum and will exert pressure on a surface.

## Does light interact with itself?

Classically, light cannot interact with light because photons – even though they mediate interactions between charged particles – do not themselves carry charge. There is then a tiny chance that these virtual particles can recombine to create pairs of real photons.

## What happens when two light beams collide?

When two beams collide, all that energy packed into such a small vacuum of space explodes and creates mass in the form of subatomic particles (think of Einstein’s famous equation: energy equals mass multiplied by the speed of light squared).

## Can light bounce off objects?

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. This is called specular reflection.

## Does light pass through light?

Since light itself does not have electric charge, one photon cannot directly interact with another photon. Instead, they just pass right through each other without being affected.

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