Two Uniform Disks, Each with the Same Mass but with Radii

question 41

Multiple Choice

Two uniform disks, each with the same mass but with radii differing by a factor of 2, roll without slipping down an inclined plane. If the two disks start from rest at the same height h, calculate the ratio of the angular velocity of the small disk divided by that of the larger disk.

• A) 1
• B) 0.5
• C) 4
• D) 2
• E) 0.25

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Definitions:

Independent Variable

In experimental research, the variable that is manipulated by the researcher to observe its effect on the dependent variable.

Analogue Experiments

Experiments that simulate real-life situations in a controlled environment to study the effects of variables on behavior in a laboratory setting.

External Validity

The extent to which the findings of a study can be generalized to other settings, populations, and time periods beyond the original conditions of the study.

Independent Variable

In research and experimentation, it is the variable that is manipulated or changed to observe its effect on a dependent variable.