A Pirate Chest Rests at the Bottom of an Ocean

question 34

Multiple Choice

A pirate chest rests at the bottom of an ocean.If the water is still, the net force it exerts on the chest:

• A)is upward
• B)is downward
• C)is zero
• D)depends on the mass of the chest
• E)depends on the contents of the chest

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Definitions:

Action Potential

A temporary reversal of the electrical potential along the membrane of a nerve cell or muscle cell, allowing for the transmission of signals.

Cardiac Cycle

The complete sequence of events in the heart from the beginning of one heartbeat to the beginning of the next, including systole and diastole phases.

Diastole

The phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.

Heart Chambers

The four compartments of the heart including two atria and two ventricles, involved in pumping blood throughout the body.