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If an object is moving upwards from the surface of the earth, the work done by gravity is _______.

If an object is moving upwards from the surface of the earth, the work done by gravity is _______. Positive Negative Zero. Elastic potential energy depends not only on displacement from equilibrium, but also on if the spring is compressed or stretched. True False.

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If an object is moving upwards from the surface of the earth, the work done by gravity is _______.

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  1. If an object is moving upwards from the surface of the earth, the work done by gravity is _______. • Positive • Negative • Zero

  2. Elastic potential energy depends not only on displacement from equilibrium, but also on if the spring is compressed or stretched. • True • False

  3. If E = K + Ugrav + Uel is constant, then total mechanical energy is ______. • conserved. • constant. • equal. • not enough information to answer.

  4. As an objects experiences free-fall, its gravitational potential energy • increases. • decreases. • does not change.

  5. When moving in horizontal plane, the work done by the normal force on an object is: • Positive • Negative • Zero

  6. What is defined as “the time rate at which work is done or energy is transferred”?

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