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 displacement versus (8qz. 3 19niabgjga cotime graph shown cba .j9ggao i z1q3(n8to the right. 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 connectei(b pju)e:d4p+9t lvrdy.su-d to the end of a spring and undergoes simple harmonic oscillation. The graph provided shows the position of the mass as measurvs :pe ).dy9+lptd r-uiu(b 4jed 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 spring and underg iw3/(oga,c(ek utp8 moes simple harmonic oswcm3(/akt e(o8piu, gcillation. The graph 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 yiu8 o 4 nru-xc/zbdm.sg :l)5simple h .:4xs/rnuy umdbg- ilc58)zoarmonic 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 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 tokuc vm0 0m4st*und-c6 a spring obeys x(t) = Acos(wt) . What is the average speed for one full oscillation in terms of the mass’s maximum speed during osciun-m dvs0*0ucct46 mkllation, $V_max$?

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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 spr7xv2+uns o v8bbix;+ging 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 tx8bbs u ;2vo7n+ ixgv+he 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 Simpl ms,ex u3ll6-ze 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 period of vibration of the mass on the s l6le-u,3xsmz pring?

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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 l;z. ,sbfkxp 2released. It swings freely to the opposite side and stops. Which of the following might best represent graphs of kinetic enef zkl2,sb;.pxrgy $E_k$, 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 alcys+4 z.rcn5tud,,lu ong a straight line is given by the velocity vs. time graph sho+n5r u lds tc,4z,uyc.wn.
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 straight line is g ,t xoneamkvi a8h*:57iven by the velocit nma,t8 ex5k*:ovia7hy vs. 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 of tbmus vivlk3 3)zn *9+3cdh(z zime shown*v3d3smhz9c+zzv ui kb()l n 3 below.
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 spring9x vy*hl k vn bcu282kc33er(s with spring constant k; is set into simple harmonic motion. Its maximum displacement from its equilibrium position is A. Whh(c32 nekby 3rkl 29 sxcuv*8vat 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 frictionless floor, as s(ac9 jvu,4ygr+qzo1 -a :b5;tuzcr h fhown in the accompanying figucbo-yr9a:hgzzu qc( 1a5f jurvt+; ,4re. 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. 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 conshk x:1q+i r6vgtant k. If the mass is set into simple harmonic motion by a displacement d from its:kg1 6+ivrh xq equilibrium 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 4)m,m67 k rj+gmdynt:w2veny1iy /jshorizontal surface 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 equilibrium sveyn6j ,md2i/r:ky 7) 1+ym4 wgjmnt. 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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