When a Rock Is Held Above the Ground,we Say It

question 19

Multiple Choice

When a rock is held above the ground,we say it has some potential energy.When we let it go,it falls and we say the potential energy is converted to kinetic energy.Finally,the rock hits the ground.What has happened to the energy?

• A)The energy goes into the ground and,as a result,the orbit of the earth about the Sun is slightly changed.
• B)The energy goes to producing sound and to heating the ground,rock,and surrounding air.
• C)The rock keeps the energy inside it (saving it for later use).
• D)It is lost forever.Energy does not have to be conserved.
• E)It is transformed back into gravitational potential energy.

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Definitions:

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A psychological condition defined by intense social fear, disorganized thinking, paranoia, feelings of unreality, brief psychotic episodes, and frequently atypical opinions.

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Actions or attitudes that deviate from the conventional or accepted societal norms, often seen as unconventional or quirky.

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