You Are Racing Away from Earth in a Super Spaceship

question 24

Multiple Choice

You are racing away from Earth in a super spaceship in which you can continually increase your speed.Which of the following best explains how people on Earth will perceive your speed?

• A)They will know you are going very fast but will have no way of knowing whether you ever exceed the speed of light.
• B)You will see any beam of light from Earth coming toward you at the speed of light,which means it will catch you.Thus,the people on Earth must conclude that you are going slower than the speed of light.
• C)An imaginary spaceship can go as fast as it wants,so the folks on Earth soon will see you going faster than the speed of light.
• D)You may soon be racing away from Earth faster than the speed of light,but,if so,people on Earth will no longer be able to see you.
• E)Without more information,it is impossible to know how fast you would see a light beam from Earth coming toward you.If it happens that you are going fast enough so that the light can't catch you,then people on Earth would find you to be going faster than light.

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Definitions:

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effects.

Flossing Frequency

The recommended regularity of cleaning between teeth with dental floss to prevent gum disease and dental decay.

Gum Disease

A set of inflammatory conditions affecting the tissues surrounding the teeth, which can lead to redness, swelling, and in severe cases, tooth loss; also known as periodontal disease.

Incidence

The rate or frequency at which a new event or case occurs in a specific population over a certain period of time.