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 oscilfgsuk* yi*th/ -7 dbs3lates with the displacement versus time graph shown to the right. Which of the follkd7it*- gsy uh*f /bs3owing 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 connec ca5njaem1bwq)*pw 8dma zhub(j m+d7 2*w,*ited to the end of a spring and undergoes simple harmonic oscillation. The graph provided shows the position of the mass as measured from the f1qe*ha a7m d8i*u ,wbcm*dw2)+ bn pamz(jj5w loor 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 o:e8 svu 35svmlf a spring and undergoes simple harmonic oscillation. The grap:evssu5lm 83v h 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 end of an ideal spring oscillates in so71s1g3+ uebx j8pyagimple harmonic motion. The mass’s position is described as a funct18g+ g ey pujxb7os3a1ion 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 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)nz/(6pb*r a*s miwmj) = Acos(wt) . What is the average speed for one full oscillation in terms of the mass’s max(nmjp/) *mbrai s6wz *imum 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 spriu oju bvrg78,.+uwt 2cng undergoes Simple Harmonic Motion. Its motion can be described by thefollowing equation y = (0.3 m) suu,b.t vo87gwcur+j2 in (10π t + 4) where m is in meters and t is in seconds. What is the amplitude of 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 w7y0k,o zozqrr v873a 2jrsu0a spring undergoes Simple 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 the pr7,z0oj37wr8ok qvs u2za y0reriod 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 releamg2pq,v/99:tisv 7 kcv *sks2t jlfm;xf.k .wsed. It swings freely to the opposite si. : smc ;svkv,w*9smfp2x l7t/gk jkvf.9t 2qide 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 object moving along a straight line is given by the velokbew , 54dw8 ;7ltebh9cg- pshcity vs. time 748lhecdw-sb hkw pge5tb,9 ;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 syb qvny, drev 927;/rstraight line is given by the velocity vs. time;be,n/qvyr7 9ydsr2v graph 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 graph of position ass+a,h7cg7l-pwa wj2llc* zhs x(/2u q a function of time shown bel+gulwjah7l l2 ,a wx*c7h-s(qs/zcp 2ow.
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 horizontal massless spring with spring con+t ceo d2/ (xwoalc4z,stant k; is set into simple harmonic motion. Its maximum dispxd2o4, ct /e(cw+l azolacement 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 mass M is initially at rest on a frictionln4a2(ier wo/lx7m2 9xrwmcb 8 ess floor, as shown in the accompanying figure. The block, attached to a massless spring 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. Whax 87w2c/i(lwer omnm xb429r at 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 wij- u svymuk*lma3836tth a spring constant k. If the mass is set into simple harmonic motion by a displacement d from its equilib ua m*k-6u3ylj8m3tsv rium position, what would be the 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 a horizontal surfakwlil63x6oj;n nc (qm:gi 0.mq8t cd3ce is connected to the end of a massless spring of spring constant k. Theg3 n;kc q xlq:6nii 86mctdjowm3l(.0 block 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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