Simple Harmonic Motion: Parameters and Typical Relationship - 无忧得胜-网上国际课程 (5edu.win)

1#

05.12: A mass on the end of a spring oscillates with the displaceme6 pvknjc)g, ld2 tq,:cnt versus time graph shown to the right.6t,:cnlq )vg pkj 2cd, Which of the following statements about its motion is INCORRECT?

A. The amplitude of the oscillations is 0.08 meters.

B. The frequency of oscillations is 0.5 Hz.

C. The mass achieves a maximum in speed at t = 1.0 second.

D. The period of oscillations is 2.0 seconds.

E. The mass experiences a maximum in the size of the acceleration at t = 1.5 s.

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

10.08: A mass is connected to the end of a spring and undergoes simpuhb51t vcsq e)c*+g+zle harmonic oscillation. The graph provided shows the position of the mass as measured from the floquv1tc*h5gbs) +zc +eor as a function of time.
What is the period of the mass’s oscillation (in units of seconds)?

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

10.09: A mass is connected to the end of a spring and undergo7 sit 7e 833s/trlkbvoes simple harmonic oscillation. The go33b7tkv ltris se78/raph provided shows the position of the mass as measured from the floor as a function of time.
What is the amplitude of the mass’s oscillation (in units of meters)?

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.08: A 2.50 g mass connected to the enpcgmv1uh:8 +o0 k8noqz c9zs2sc (o+d d of an ideal spring oscillates in simple harmonic motion. The mass’s position is described as a function of time by x(t) =0.20 cos(8.00 t + 0.50) where all quantities are in base SI units. Which one of the following choices gives the numerical value of the oscillation’s 2 z9+kc d0o1h8z+:mqvo cnug spsco(8 amplitude in base SI units?

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.26: The position of a mass connected to a spring obeys x(t) = Ae(2su u2j;v fu6t. bfdqi3n e4cos(wt) . What is the average speed for one full oscillation in terms of the masuqj et4.un;bsd6(3 f 22i evufs’s maximum speed during oscillation, $V_max$?

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.37: An object on a spring undergoes Simple Harmo k pqmfz0ss4-4nic Motion. Its motion can be described by thefollowing equation y = (0.3 m) sin (10π t + 4) where m is in meters and t is in seconds. What is the amplitude of 4s psq4kz-mf0 the vibrating mass on the spring?

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.38: An object on a spring undergoes Siy q.ip ld+):cgkq9( f40xexnymple Harmonic Motion. Its motion can be described by thefollowing equation y = (0.3 m) sin (10π t + 4) where m is in meters and t is in seconds. What is t+cpg :9k ndxf0y ql4.qeyxi ()he period of vibration of the mass on the spring?

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

00.08: A pendulum is pulled to one side and relea/6wh m5hmuih;o (*no ised. It swings freely to the opposite whi5h nim6(ou*mo/;hside and stops. Which of the following might best represent graphs of kinetic energy $E_k$, potential energy $E_p$ and total energy $E_T$?

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.18: The motion of an ob/)( m mhobp;hve*d2vjject moving along a straight line is given by the velocity vsh2m;*bdm( /) ejhop vv. time graph shown.
Which one of the following choices best represents the average acceleration of the object during the time interval from t=4.0 sto t=9.0 s?

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.19: The motion of an object moving along a strvpr.oz-v+) )q t9 6fj7dwejui zqsew1 76 5pqqaight line is given by the velocity vs. time graph wpv r6q6ezdejz)91oq+p.fwi57qu v jsq7- t) shown.
Which one of the following choices best represents the instantaneous acceleration of the object at the time of t=5.0s?

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

12.17: A mass moves according to the i:s,x6t9+q.v dit fuigraph of position as a function of time shown +f,v:tsuix9t d .i q6ibelow.
Which one of the following choices correctly represents the time instants or time interval for which the instantaneous velocity of the mass is considered always to be negative? Lettrepresent time.

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.05: Amass m; attached to a hor-wsp tl7f7g32yx t3 2zazq8q lizontal massless spring with spring constant k; is set into simple harmonic motion. Its tfa-y7s xzlqw 32q3t27 8zl gpmaximum displacement from its equilibrium position is A. What is the mass’s speed as it passes through its equilibrium position?

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

94.40: A block of massh 4 )jn++x,dfc, 9trda5ocygt M is initially at rest on a frictionless floor, as shown in the accompanying figure. The block, attached to a massless sprin ,x9roaj+c,)d 5cfdhy 4t+gtng with spring constant k, is initially at its equilibrium position. An arrow with mass m and velocity v is shot into the block. The arrow sticks in the block. What is the maximum compression of the spring?

A. $x= v\frac{\sqrt{m}}{k}$

B. $x= v\frac{\sqrt{k}}{m}$

C. $x= v\frac{\sqrt{M+m}}{k}$

D. $x= \frac{(M+m)v}{\sqrt{mk}}$

E. $x= \frac{mv}{\sqrt{(M+m)k}}$

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.36: A mass m is attached to a spring with a spring e c4c9,fij 4 dom*g1tzconstant k. If the mass is set into simple harmonic motion by a displacement d from its equilibrium position, what would be themg4dfio*e j ,1c9tz4 c speed,v, of the mass when it returns to equilibrium position?

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

08.48: A block of mass M on a9aa :.89 gxg2eu.z6l ezshpqhmo9h)a horizontal surface is connected to the end of a massless spring of spring constant k. The block ala hhz.s9g ag 8p9hmq)x9:o2 .6euz e is pulled a distance x from equilibrium and when released from rest, the block moves toward equilibrium. What minimum coefficient of kinetic friction between the surface and the block would prevent the block from returning to equilibrium with non-zero speed?

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