Work cannot be done in the absence of motion

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Reference no: EM13553010

Select True or False for each statement.

1) Without friction, and in the absence of external forces, the sum of the potential and kinetic energies of a body is constant.

2) More power is required while slowly lifting a box than while lifting it up quickly.

3) Energy is required to do work.

4) Energy conservation law for a projectile (no friction): Potential energy increase equals the kinetic energy decrease.

5) Work cannot be done in the absence of motion.

6) Work is done when the form of energy changes.

Reference no: EM13553010

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