When a Car Goes Around a Circular Curve on a Level

question 15

Multiple Choice

When a car goes around a circular curve on a level road without slipping,

• A) no frictional force is needed because the car simply follows the road.
• B) the frictional force of the road on the car increases when the car's speed decreases.
• C) the frictional force of the road on the car increases when the car's speed increases.
• D) the frictional force of the road on the car increases when the car moves to the outside of the curve.
• E) there is no net frictional force because the road and the car exert equal and opposite forces on each other.

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Definitions:

Four-Carbon Rings

Structures found in certain organic molecules, including some steroids, where a set of carbon atoms are connected in a ring comprising four carbon atoms.

Anterior Pituitary

The front portion of the pituitary gland that secretes hormones affecting growth, metabolism, and reproduction.

Portal System

Pathway of blood flow that begins and ends in capillaries, such as the portal system located between the small intestine and liver.

Peptide Hormones

Short strings of amino acids that act as signaling molecules, regulating physiological processes in the body.