A Simple Pendulum Consists of a Ball of Mass M $\theta$

question 1

Multiple Choice

A simple pendulum consists of a ball of mass m suspended from the ceiling using a string of length L. The ball is displaced from its equilibrium position by a small angle $\theta$ . What is the magnitude of the restoring force that moves the ball toward its equilibrium position and produces simple harmonic motion?

• A)kx
• B)mg
• C)mg(cos \(\theta\))
• D)mg(sin \(\theta\))
• E)mgL(sin \(\theta\))

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Definitions:

Level Of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true, used as a criterion for judging whether an observed effect is statistically significant.

Upper-tail Area

The area under the probability density function of a continuous random variable to the right of a specified value, used in significance testing.

Pooled Proportion Estimate

A method used to estimate the combined proportion from two or more groups, assuming that the underlying proportions across groups are the same.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists among the variables studied.