Jeremy Is an Experienced Professional Sprinter Who Is Confident in His

question 61

Multiple Choice

 Jeremy is an experienced professional sprinter who is confident in his technique and preparation. As his stress levels increase during an important competition, it is likely that his performance will

• A) continue to improve.
• B) decrease.
• C) improve at first, but after his stress reaches a certain point, his performance will decrease.
• D) decrease at first, but after his stress reaches a certain point, his performance will improve.

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Definitions:

Chemical Energy

The potential of a chemical substance to undergo a transformation through a chemical reaction or to transform other chemical substances.

Mechanical Energy

The sum of potential and kinetic energy in physical systems, often involved in performing work or causing motion.

Kinetic Energy

The energy that an object possesses due to its motion, which is dependent on the mass of the object and the square of its velocity.

Heat Energy

Energy that results from the random movement of atoms, ions, or molecules; the greater the amount of heat energy in an object, the higher the object’s temperature.