The Force of Gravity Between Two Objects

question 55

Multiple Choice

The force of gravity between two objects:

• A)increases with the masses of the bodies, but decreases with their separations.
• B)increases with the masses of the bodies, but decreases with the square of the distancesbetween them.
• C)increases with the square of their masses, but decreases with the cube of their periods of orbitabout the Sun.
• D)depends on the density, not the mass of the bodies.
• E)depends on the temperature, density, and size of the bodies.

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Definitions:

T-Distribution

The T-distribution, or Student's t-distribution, is a probability distribution that estimates the population parameters when the sample size is small and the population standard deviation is unknown.

T Distribution

A statistical curve that shows the standard deviations of samples taken from a population and is used when the population standard deviation is unknown and the sample size is small.

Standard Normal Distribution

A normal distribution with a mean of zero and a standard deviation of one.

Population Mean

The sum of the values in the population divided by the number of values in the population.