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 wia.+ r4+k.(xcx c.tmgr0e dq cqth the displacement versus time graph shown to the right. Which of thmc0e. tkx.q+ qcr d4ag(.rx +ce 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 connecte)gh2x wejnc+2tq j (g.d to the end of a spring and undergoes simple harmonic oscillation. The graph provided shows the position of the maj)+e (.hgj2nxq cw2gtss as measured from the floor 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 sprt85sty- cuc3cvni;(t ing and undergoes simple harmonic oscillation. The graph provided shows the position of the mass as measured- 8t tcysu;c5(vnt3ci 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 j cay6:b:e 9i4et1k.r4 evoapideal 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 girv o6p jea: bc44y ee:t19ak.ives 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 bh(w 9hxsqv.)qn)a) pa spring obeys x(t) = Acos(wt) . What is the averhn)wq s9))vqxh.pba( age speed for one full oscillation in terms of the mass’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 spdsrf a+ -3evl3ring 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 amplitude of the vibrating mass on the spring?arsvfdl e +-33

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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 unde *gd;u( yg1ur41+oe7mmmf vi nrgoes Simple Harmonic Motion. Its motion can be described by thefollowing eq*u1f vymnm( 1+dg7gomi4u;e ruation y = (0.3 m) sin (10π t + 4) where m is in meters and t is in seconds. What is the 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 pul;t+n7s kqb/ g3n+waeuled to one side and released. It swings freely to the opposite side and stops. Which of the fbk/37g+ wsn+ue t;aqn ollowing 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 objectes3n97rdbpop51k18 dixu dse * aa:f 8 moving along a straight line is given by the velocity vs. time k:ea 1ba537spu *fd9ex18sd ior8dpngraph 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 mov futjsl*5 5g3kboz:qxyyd+x* 4d //q fing along a straight line is given by the velocity vlfzx+o *f dg*k53/:/qt qu4bsjx dy5ys. time 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 as a function 6 a+xreq qe:vvl,e-:ywp /de 7of time shown belox,:yl7vwee6v peq- e :qa+/ rdw.
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 massl-r .b50v ceu(eaz nw9qess spring with spring constant k; is set into simple harmonic motion. Its maximum displacement from its equilibrium position is A. What is the mass’s speed as it v c.0b9z 5qeawr u-(nepasses 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 /s9.rqh (gndft+ lqg6rest on a frictionless floor, as shown in the accompanying figure. The block, attached to a massless spring with s f6ds/ tg(hn9r+qqgl.pring 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 witxejt2 re( (x+)wzhc05 keo,u fh a spring constant k. If the mass is set into simple harmonic motion by a displacement d from its equilibrium position, what would be the speed,v, of the mass when it return(f0zxj5 o( x+treuek),whc e2 s 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 surfaxwcy)( 3)ookr ce is connected to the end of a massless spring of spring constant k. The block is pulled a distance x from equilibrium and when released from rest, the block moves toward equ oyk3(c)xow)rilibrium. 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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