Yes, moving objects do experience the effects of special relativity, such as length contraction and time dilation, relative to stationary objects. These effects become more pronounced as an object's velocity approaches the speed of light.
Length contraction refers to the phenomenon where the length of an object in the direction of its motion appears shorter when observed by an observer in a different frame of reference. From the perspective of a stationary observer, a moving object will appear contracted in the direction of its motion. This contraction becomes more significant as the velocity of the object increases, approaching the speed of light. However, it's important to note that length contraction is not directly noticeable in everyday life due to the relatively low speeds involved.
Time dilation, on the other hand, is the phenomenon where time appears to pass more slowly for a moving object relative to a stationary observer. This effect becomes noticeable even at speeds well below the speed of light. According to special relativity, as an object's velocity increases, time dilation becomes more pronounced. The moving object's internal processes, such as aging or the ticking of a clock, slow down relative to a stationary observer.
The combined effects of length contraction and time dilation are consequences of the constancy of the speed of light and the relativistic relationship between space and time. As an object's velocity increases, it enters a regime where these relativistic effects become more significant. However, for everyday objects moving at typical speeds encountered in our daily lives, these effects are extremely small and are not directly observable.
It's worth noting that special relativity applies to all objects in motion, whether they are large or small, and regardless of their mass. The effects of length contraction and time dilation are not limited to specific types of objects but are fundamental aspects of spacetime as described by the theory of special relativity.