The SI Standard of Time Is Based On

question 30

Multiple Choice

The SI standard of time is based on:

• A)the daily rotation of the Earth
• B)the frequency of light emitted by Kr⁸⁶
• C)the yearly revolution of the Earth about the sun
• D)a precision pendulum clock
• E)none of these

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Definitions:

Service Learning

A form of education that promotes social responsibility and service to the community.

Social Responsibility

The ethical framework suggesting that an individual or organization has an obligation to act for the benefit of society at large.

Compound

A substance formed when two or more chemical elements are chemically bonded together.