An 800-kg mass is hung from a 1.50-m copper wire with a cross-sectional area of 0.350 cm2. Young's modulus for copper is 1.10 x 1011 N/m2. How much does the wire stretch?

A) 2.56 mm B) 2.97 mm C) 3.14 mm D) 3.86 mm E) 4.13 mm A) 2.56 mm B) 2.97 mm C) 3.14 mm D) 3.86 mm E) 4.13 mm

Exam 9: Elastic Properties of Matter: Stress and Strain

When you squeeze a small stress-ball on all sides in your palm you decrease its volume to ¾ of its original volume. What is the volume strain on the ball?

(Multiple Choice)

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Question 21

If you grab each end of a pencil and try to pull the ends apart, you are putting the pencil under tension or tensile stress; if you push the ends toward each other, you are putting the pencil under

(Multiple Choice)

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Question 22

The table below shows ultimate tensile strengths ) and Young's moduli ) for tungsten W) and silicon Si). Based on the information in the table, what is the ratio of ultimate tensile strains for these materials, namely .

(Multiple Choice)

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Question 23

A college student measures his height just before he goes to bed at night and also right after he gets up in the morning the next day. His measurements are 1.80 m, and 1.82 m, respectively. What is the compressive strain on his body due to the normal force and the gravity that are acting on him all day long?

(Multiple Choice)

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Question 24

All elastic materials obey Hooke's law in the region of small strain.

(Multiple Choice)

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Question 25

Fill in the blank. If you double the cross-sectional area of a steel rod, you would __________ the Young's modulus of steel.

(Multiple Choice)

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Question 26

True or false? Volume stress is equal to the pressure on the object.

(True/False)

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Question 27

Use the following figure to answer the following question: -A steel wire and an aluminum wire of the same length L and diameter d are joined to form a wire of length 2L. The wire is fastened to the ceiling and a mass m is attached to the other end. If the masses of the wires are negligible relative to mass m, the ratio of the strain in the aluminum wire to the strain s in the steel wire is

(Multiple Choice)

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Question 28

Fill In the blank. If you double the radius of a steel cable without changing its length, you would __________ its elastic constant.

(Multiple Choice)

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Question 29

Young's modulus depends on the geometric shape of the object:

(True/False)

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Question 30

$The point that identifies the fracture point of the material whose graph of stress as a function of strain is shown is$ The point that identifies the fracture point of the material whose graph of stress as a function of strain is shown is

(Multiple Choice)

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Question 31

A wire has a diameter of 0.75 mm. It is stretched 0.20% of its original length when a mass of 5.0 kg is hanging from it. What is the Young's modulus of the wire?

(Multiple Choice)

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Question 32

If you measure the magnitude of the force required to stretch a typical laboratory spring as a function of the MAGNITUDE of stretch, which of the graphs shown would best represent your data?

(Multiple Choice)

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Question 33

A spring is made of a wire of radius r and length L. If the radius of the wire and the length of the wire were doubled, the spring constant of the spring would

(Multiple Choice)

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Question 34

The graph shows force exerted by two springs with spring constants and , respectively, as a function of extension/compression. Which of the following statements is not true?

(Multiple Choice)

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Question 35

The bulk modulus of mercury is If a drop of benzene with a volume is moved from a vacuum chamber to a high-pressure chamber with , the volume of the droplet

(Multiple Choice)

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Question 36

A cable lifting a 4.00-lb bowling ball stretches by 3.00 mm. If the cable is cut in half and both halves are used together to lift the same bowling ball, each cable will stretch by

(Multiple Choice)

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Question 37

A 1.83 m-long aluminum "singing" rod is vertically balanced on the floor on one of its ends. Calculate the pressure on the ground exerted by the road due to the weight of the road. The density of Al is QUOTE 2.70×10³ kg/m3 and the diameter of the rod is 1.27 cm.

(Multiple Choice)

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Question 38

An 800-kg mass is hung from a 1.50-m copper wire with a cross-sectional area of 0.350 cm². Young's modulus for copper is 1.10 x 10¹¹ N/m². How much does the wire stretch?

(Multiple Choice)

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Question 39

A cube expands by 6.94 mm³ when moved from normal conditions to a vacuum chamber. If the bulk modulus of the material is 28.5 GPa, what is the length of the side of that cube?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 49

Exam 9: Elastic Properties of Matter: Stress and Strain

When you squeeze a small stress-ball on all sides in your palm you decrease its volume to ¾ of its original volume. What is the volume strain on the ball?

If you grab each end of a pencil and try to pull the ends apart, you are putting the pencil under tension or tensile stress; if you push the ends toward each other, you are putting the pencil under

The table below shows ultimate tensile strengths ) and Young's moduli ) for tungsten W) and silicon Si). Based on the information in the table, what is the ratio of ultimate tensile strains for these materials, namely .

All elastic materials obey Hooke's law in the region of small strain.

Fill in the blank. If you double the cross-sectional area of a steel rod, you would __________ the Young's modulus of steel.

True or false? Volume stress is equal to the pressure on the object.

Fill In the blank. If you double the radius of a steel cable without changing its length, you would __________ its elastic constant.

Young's modulus depends on the geometric shape of the object:

The point that identifies the fracture point of the material whose graph of stress as a function of strain is shown is

A wire has a diameter of 0.75 mm. It is stretched 0.20% of its original length when a mass of 5.0 kg is hanging from it. What is the Young's modulus of the wire?

If you measure the magnitude of the force required to stretch a typical laboratory spring as a function of the MAGNITUDE of stretch, which of the graphs shown would best represent your data?

A spring is made of a wire of radius r and length L. If the radius of the wire and the length of the wire were doubled, the spring constant of the spring would

The graph shows force exerted by two springs with spring constants and , respectively, as a function of extension/compression. Which of the following statements is not true?

The bulk modulus of mercury is If a drop of benzene with a volume is moved from a vacuum chamber to a high-pressure chamber with , the volume of the droplet

A cable lifting a 4.00-lb bowling ball stretches by 3.00 mm. If the cable is cut in half and both halves are used together to lift the same bowling ball, each cable will stretch by

A 1.83 m-long aluminum "singing" rod is vertically balanced on the floor on one of its ends. Calculate the pressure on the ground exerted by the road due to the weight of the road. The density of Al is QUOTE 2.70×103 kg/m3 and the diameter of the rod is 1.27 cm.

An 800-kg mass is hung from a 1.50-m copper wire with a cross-sectional area of 0.350 cm2. Young's modulus for copper is 1.10 x 1011 N/m2. How much does the wire stretch?

A cube expands by 6.94 mm3 when moved from normal conditions to a vacuum chamber. If the bulk modulus of the material is 28.5 GPa, what is the length of the side of that cube?

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$The point that identifies the fracture point of the material whose graph of stress as a function of strain is shown is$ The point that identifies the fracture point of the material whose graph of stress as a function of strain is shown is

A 1.83 m-long aluminum "singing" rod is vertically balanced on the floor on one of its ends. Calculate the pressure on the ground exerted by the road due to the weight of the road. The density of Al is QUOTE 2.70×10³ kg/m3 and the diameter of the rod is 1.27 cm.

An 800-kg mass is hung from a 1.50-m copper wire with a cross-sectional area of 0.350 cm². Young's modulus for copper is 1.10 x 10¹¹ N/m². How much does the wire stretch?

A cube expands by 6.94 mm³ when moved from normal conditions to a vacuum chamber. If the bulk modulus of the material is 28.5 GPa, what is the length of the side of that cube?