Select True or False for each statement. True False Work can be done in the abse
ID: 1598477 • Letter: S
Question
Select True or False for each statement.
True False Work can be done in the absence of motion.
True False Less power is required while slowly lifting a box than while lifting it up quickly.
True False Work is done when the form of energy changes.
True False Energy conservation law for a projectile (no friction): Potential energy increase equals the kinetic energy decrease.
True False Without friction or work by an external force, the sum of the potential and kinetic energies of a body is constant.
True False A source of energy is required to do work.
Explanation / Answer
false (W=FS)
true (P=MGV)
true (work energy theorem)
true (total energy=P.E+K.E)
true (law of conservation of energy)
true