Why does light accelerate with a constant speed?

Why does light accelerate with a constant speed?

Light undergoes acceleration due to gravity: look up ‘gravitational lensing’ for that. To understand how light can accelerate with a constant speed, you have to understand the difference between speed and velocity, and what acceleration really means. Speed is a ‘scalar’, just a number with no direction.

How does gravity affect the acceleration of light?

Gravity causes anything with energy to accelerate toward the source. Black holes, for example, have such strong gravity that they pull in light and don’t let any escape. But can acceleration still apply to light?

Can a photon be accelerated by changing its speed?

That’s still acceleration. If a photon is passing by something heavy, it will be accelerated towards that object, changing its course but not its speed. If a photon is going towards or away from something heavy, it can’t properly accelerate by changing speed.

Do you feel a force as the ISS accelerates?

Because you and the ISS are accelerating exactly the same way, you don’t feel a thing. You don’t feel a force if it’s accelerating you: you feel pressure caused by opposing forces.

When does the loss of Power Light Come On?

The check engine light will come on and almost simultaneously the loss of power light will come on and the car will pretty much come to a stop. So far they have replaced the computer, gas pedal, wiring to the computer, cat converter…it is still doing it! I don’t know what to do!

Light undergoes acceleration due to gravity: look up ‘gravitational lensing’ for that. To understand how light can accelerate with a constant speed, you have to understand the difference between speed and velocity, and what acceleration really means. Speed is a ‘scalar’, just a number with no direction.

Gravity causes anything with energy to accelerate toward the source. Black holes, for example, have such strong gravity that they pull in light and don’t let any escape. But can acceleration still apply to light?

That’s still acceleration. If a photon is passing by something heavy, it will be accelerated towards that object, changing its course but not its speed. If a photon is going towards or away from something heavy, it can’t properly accelerate by changing speed.