science Flashcards

1
Q

in the vacuum of space, light travels at a speed

A

3.00 x 10 to the 8th power

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2
Q

the speed of light is always what no matter how it is measured

A

constant

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3
Q

regardless of the location or motion of the person doing the measuring , the measured speed of light in a vacuum will be exactly

A

299,792,458 m/s

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4
Q

objects are shorter in the

A

direction of motion

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5
Q

the mass of an object moving at a high speed

A

increases

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6
Q

einsteins general theory of relativity also shows that time and length are what

A

affected by gravity

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