The Weight of a Body Above the Surface of the Earth

question 19

Multiple Choice

The weight of a body above the surface of the earth is inversely proportional to the square of its distance from the center of the earth. What is the effect on the weight when the distance is multiplied by 2?

• A) The weight is divided by 2.
• B) The weight is multiplied by 4.
• C) The weight is divided by 4.
• D) The weight is multiplied by 2.

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Definitions:

Postsynaptic Membrane

Refers to the membrane on the neuron receiving end of a synapse, where neurotransmitters are received.

Voltage-Gated Channel

A type of ion channel that opens or closes in response to changes in the electrical potential across the cell membrane.

Synaptic Vesicle

A small, spherical structure found within nerve cells, containing neurotransmitters that are released during synaptic transmission.

Chemical Synapse

A junction between two nerve cells where neurotransmitters are released to transmit signals.