Does moving faster change how fast light travels?
Speed of light
Does moving faster change how fast light travels?
Imagine you're driving a car at high speed, and you shine a flashlight forward. Does the light from the flashlight move faster because you're moving fast?
Light always travels at the same speed, no matter how fast you're moving. It's like the flashlight's light doesn't care about your car's speed.
Example
You turn on the flashlight in your car moving 100 km/h, but the light still moves at 299,792,458 m/s.
Remember this
Light's speed is constant and doesn't depend on the motion of the source.
Text adapted from Wikipedia, licensed under CC BY-SA 4.0.
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