## Which is bigger proton or quark?

A proton is almost 100 times heavier than the three quarks! According to special relativity, the mass of an object increases when it has more energy (for example, when it’s moving faster). When we talk about the mass of quarks and protons, we mean their mass when they aren’t moving. This is called the “rest mass.”

## Is a quark energy?

Quarks, along with gluons, are the fundamental building blocks of the universe. These subatomic particles — the smallest particles we know of — are far smaller, and operate at much higher energy levels, than the protons and neutrons in which they are found.

## How fast is a photon?

It is the quantum of the electromagnetic field including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless, so they always move at the speed of light in vacuum, 299792458 m/s (or about 186,282 mi/s).

## Can photons stand still?

1 Answer. No, we cannot make photons travel at any value other than the speed of light. It is a postulate of the theory of relativity and it works because solutions to the equations of electromagnetism indicate that light/photons must travel at a constant speed regardless of observer.

## Can light be accelerated by gravity?

The short answer is no, the speed of light is always the same. This is one reason that light may be affected by gravity. However, light has no mass so it is not accelerated by gravitational forces. Even when light travels on a curved path it does so at the “speed of light” which is a universal speed limit.

## Can time be bent?

Also, under Einstein’s theory of general relativity, gravity can bend time. When anything that has mass sits on that piece of fabric, it causes a dimple or a bending of space-time. The bending of space-time causes objects to move on a curved path and that curvature of space is what we know as gravity.