Which of the following statements is correct?

A. the density of a liquid decreases when it expands B. the density of a liquid increases when the liquids are heated C. the real expansivity of a liquid is less than its apparent expansivity D. a liquid changes to solid when heated to a sufficiently high temperature...

The frequency of a swinging pendulum is the?

A. number of complete oscillations the pendulum makes in a second B. number of amplitudes the bob makes in a second C. angle the bob swings through in a second D. distance the bob covers in a second Correct Answer: Option A A. number of complete oscillations the...

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