This question comes with this set of answer choices:
A.Kinetic energy and potential energy are equal when the bob is at its resting point.
FALSE: BECAUSE AT REST KINETIC ENERGY IS ZERO AND POTENTIAL ENERGY IS MAXIMUM.
B.Kinetic energy and potential energy are equal when the bob is halfway between its resting point and its maximum amplitude.
TRUE: AT REST POTENTIAL ENERGY IS MAXIMUM AND KINETIC ENERGY IS ZERO, AS THE PENDULUM MOVES THE KINETIC ENERGY INCREASES AND THE POTENTIAL ENERGY DECREASES. IN AN INTERMEDIATE POINT BOTH ENERGIES ARE EQUAL.
C.Kinetic energy and potential energy are equal when the bob is at its maximum amplitude.
FALSE: THE MAXIMUM AMPLITUD IS WHEN THE PENDULUM BECOMES AT REST.
D.Kinetic energy and potential energy are equal when the bob is halfway between its pivot and its minimum amplitude.
FALSE: THIS DESCRIPTION OF THE MOTION DOES NOT MAKE SENSE AS THE PENDULUM IS NEVER HALFWAY BETWEEN THE ITS PIVOT AND ITS MINIMUM AMPLITUDE.
Answer: B.Kinetic energy and potential energy are equal when the bob is halfway between its resting point and its maximum amplitude.
