The Motion of a Particle Is Described in the Velocity

question 24

Multiple Choice

The motion of a particle is described in the velocity vs.time graph shown in the figure.
Over the nine-second interval shown,we can say that the speed of the particle

• A)only increases.
• B)only decreases.
• C)increases and then decreases.
• D)decreases and then increases.
• E)remains constant.

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Definitions:

Atria

The atria are the two upper chambers of the heart, responsible for receiving blood from the veins and pumping it into the ventricles, which then circulate it to the lungs and the rest of the body.

Ventricles

Hollow chambers within the brain that produce cerebrospinal fluid, or within the heart that pump blood throughout the body.

ECG

An abbreviation for Electrocardiogram, a test that measures the electrical activity of the heart to show whether it is working normally.

Electrodes

Conductive materials that can be used to detect electrical signals or deliver electrical stimulation in various applications.