Two Eggs of Equal Mass Are Thrown at a Blanket

question 17

Multiple Choice

Two eggs of equal mass are thrown at a blanket with equal velocity. Egg B hits the blanket but egg A hits the wall instead. Compare the work done on the eggs in reducing their velocities to zero.

• A) More work was done on A than on B.
• B) More work was done on B than on A.
• C) The amount of work is the same for both.
• D) It is meaningless to compare the amount of work because the forces were so different.
• E) Work was done on B, but no work was done on A because the wall did not move.

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Definitions:

Type II Error

In statistical hypothesis testing, the error that occurs when one fails to reject a false null hypothesis (a false negative).

Significant

Indicates that the results in statistical analysis are likely not due to chance, and there is a certain degree of reliability in the findings.

Power

The probability that a statistical test will correctly reject a false null hypothesis, a measure of a test's capability to detect an effect when there is one.

Hypothesis Testing

A statistical method used to evaluate the plausibility of a hypothesis by using sample data.