An Object of Mass M Is Held at a Vertical

question 62

Multiple Choice

An object of mass m is held at a vertical height h from ground level. It is then released and falls under the influence of gravity. Which of the following statements is true in this situation? (Neglect air resistance.)

• A) The total energy of the object is decreasing.
• B) The kinetic energy of the object is decreasing.
• C) The potential energy of the object is increasing.
• D) The total energy of the object is increasing.
• E) The potential energy of the object is decreasing and the kinetic energy is increasing.

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Definitions:

Chemoreceptor

Sensory receptor that is sensitive to chemical stimulation—for example, receptors for taste and smell.

Thermoreceptor

Sensory receptor that detects heat.

Mechanoreceptor

Sensory receptor that responds to mechanical stimuli, such as pressure, sound waves, or gravity.

Photoreceptor

Sensory receptor that responds to light stimuli.