For each of the following statements, determine whether itis true or false. The
ID: 1722945 • Letter: F
Question
For each of the following statements, determine whether itis true or false.The kinetic energy depends on the reference frame of theobserver.
The kinetic energy of an object depends on thedirection of the motion involved.
The kinetic energy can be negative.
If the earth revolves around the sun in a perfectlycircular orbit, then the sun does do work on the earth.
Spring A is stiffer than B (kA >kB). More work must be expended on Spring A if bothsprings are stretched by the same amount.
The spring force is a non-conservative force.
The work done to raise a box onto a platform does not dependon how fast it is raised.
Work cannot be done in the absence ofmotion.
The kinetic energy depends on the reference frame of theobserver.
The kinetic energy of an object depends on thedirection of the motion involved.
The kinetic energy can be negative.
If the earth revolves around the sun in a perfectlycircular orbit, then the sun does do work on the earth.
Spring A is stiffer than B (kA >kB). More work must be expended on Spring A if bothsprings are stretched by the same amount.
The spring force is a non-conservative force.
The work done to raise a box onto a platform does not dependon how fast it is raised.
Work cannot be done in the absence ofmotion. If the earth revolves around the sun in a perfectlycircular orbit, then the sun does do work on the earth.
Explanation / Answer
If the earth revolves around the sun in a perfectlycircular orbit, then the sun does do work on the earth. FALSE. the force at work is gravity, andthe earth returns to the same spot.TRUE. Work=force*distance, and more force must beexerted on the stiffer spring
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