Sorting Task: Effects of Relativity

Smaller/shorter than rest value

-distance to Vega as measured by spaceship passengers -length (in the direction of motion) of the spaceship as measured by you

Larger/longer than rest value

-one second on your clock as seen by spaceship passengers -one second on a spaceship clock as seen by you -mass of spaceship as measured by you -your mass as measured by spaceship passengers

Same as rest value

-speed of the spaceship's headlight as measured by you

Imagine that you are located on Earth while a spaceship travels from Earth to the star Vega at constant velocity of 0.8c. The following items describe quantities that, according to Einstein's special theory of relativity, would be either larger (or longer), smaller (or shorter), or the same as their rest values.

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