College Physics Reasoning and Relationships

Physics & Astronomy

Quiz 1 :

Introduction

Quiz 1 :

Introduction

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Which one of the choices below represents the preferred practice regarding significant figures when adding the following: 12.4 + 14 + 67.37 + 4.201?
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A

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Which one of the choices below represents the preferred practice regarding significant figures when multiplying the following: 10.5 8.9 3.11?
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D

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A circle has an area of 2.0 m2. A second circle has triple the radius of the first. The area of the second circle is _____ times that of the first.
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B

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A room in a house has a floor area of 160 ft2. Which of the following is most likely the approximate volume of the room?
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Multiplying a 4 significant figure number by a 3 significant figure number and then dividing the product by a six significant figure number yields a number with how many significant figures?
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The prefixes which are abbreviated p, n, and T represent which of the following?
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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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Two numbers, one with 4 significant figures and the other with 3 significant figures, are combined using the math operations given below. Which operation can give a result with fewer than 3 significant figures?
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The ratio M/m of the prefixes M and m has what value?
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tripling the radius of a sphere results in increasing its volume by a factor of
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The current standard definition for the second has been based on which of the following?
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One year is about _____ seconds while one day is exactly _____ seconds.
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On planet Q the standard unit of volume is called the guppy. Space travelers from Earth have determined that one liter = 38.2 guppies. How many guppies are in 200 liters?
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Modern electroplaters can cover a surface area of 55.0 m2 with one troy ounce of gold (volume = 1.611 cm3). What is the thickness of the electroplated gold?
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In 1983 the standard meter was redefined to what it is currently. What was the previous definition from 1960 based on?
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On planet Z, the standard unit of length is the foose. Ann the Astronaut is 5.90 feet tall on Earth. She lands on planet Z and is measured to be 94 foosi tall. Her partner Rachael is 83 foosi tall. How tall is Rachael on Earth?
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The number 0.0001070 has how many significant figures?
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Calculate (0.82 + 0.042) (4.49 103), keeping only significant figures.
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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 93.500 in2. The number of significant figures in the width measurement must be at least:
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The basic function of an automobile's carburetor is to atomize the gasoline and mix it with air to promote rapid combustion. Assume that 40 cm3 of gasoline is atomized into N spherical droplets. Each droplet has a radius of 2.0 105 m. Find the total surface area of these N spherical droplets.
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