College Physics Study Set 7

Physics & Astronomy

Quiz 1 :Introduction

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Which one of the choices below represents the preferred practice regarding significant figures when multiplying the following: 10.5 * 8.8 * 3.14?
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A

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One year is about ____ seconds while one day is exactly ____ seconds.
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A

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In mechanics, physicists use three basic quantities to derive additional quantities.Mass is one of the three quantities.What are the other two?
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C

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If the displacement of an object, x, is related to velocity, v, according to the relation x = Av, the constant, A, has the dimension of which of the following?
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The ratio M/m of the prefixes M and m has what value?
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Since 1967 the standard definition for the second has been based on which of the following?
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Since 1983 the standard meter has been defined in terms of which of the following?
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Calculate (0.82 + 0.042) * (4.4 * 103), keeping only significant figures.
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Which expression is dimensionally consistent with an expression that would yield a value for time-1? (v is velocity, x is distance, and t is time)
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If a is acceleration, v is velocity, x is position, and t is time, then which equation is not dimensionally correct?
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Suppose an equation relating position, x, to time, t, is given by x = b t3 + c t4, where b and c are constants.The dimensions of b and c are respectively:
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The nuclei of atoms contain:
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The prefixes which are abbreviated p, n, and G represent which of the following?
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When was the existence of the neutron confirmed?
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The proton contains which of the following combination of quarks?
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The length and width of a standard sheet of paper is measured, and then the area is found by calculation to be 93.50 in2.The number of significant figures in the width measurement must be at least:
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The speed of a boat is often given in knots.If a speed of 5 knots were expressed in the SI system of units, the units would be:
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Which one of the choices below represents the preferred practice regarding significant figures when adding the following: 12.4 + 11 + 67.37 + 4.201?
Multiple Choice