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 l*e rmw-f4 ;fqljo;;an ,kz6w with the displacement versus time graph shown to the right. Which of the following statements about its motion is INCOe n-; *wfqlfwrjm ;;az ,k4lo6RRECT?

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 sicw s-1 ngm*x919zfd dx8ur yz4 d+op6mmple harmonic oscillation. The graph provided shows the position of the mass as measured from the floor as a functiu9mp ydc n wz-z8m4 d6d1 x1+xosfrg9*on 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 ab ;a5 +komto;y spring and undergoes simple harmonic oscillation. The graph provided shows the positto+y ;m kb5ao;ion 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 p.sj*hg.: x*ti rjx:uthe end 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 amplitude :j i.s* hxx* jp.:rtguin 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) = Acos(wt)1pdvyf+q weyd*m8l3j sf . ;i0 . What is the average speed for one full o i*el;m yy0dwf1dqj8s 3f .+pvscillation 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 gcfexqewxq )j:g/.07 vh.5p t 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 an.f/evq w g )7tjxh.:g0 pec5qxd 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 a spring undergoes Simple1 / ibklxbuj.6:s2olg 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 ij/2 o.l x1l :6ibgkbsus 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 pulled to o an-sa l;s)7vgty9u -ow xq5d5ne side and released. It swings freely to the opposite side and stops. Which a nsgaxq5vt5;l 9)youd -ws- 7of 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 velo9a8*3 z jgehql.fzu-gfmf4:bcity lf mfe-ahjzg34:9g8fz *q u. bvs. 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 obje mx2hq9p l6f-q3 g9saect moving along a straight line is given by the velocity vs. tphq -xqa3m6s9e2 fl g9ime 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 qi7b)8gxec ye)z1z t:as a function of time showneg1ite c))8:y7bzz xq 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 horizonhi5kr w; 0/szutal massless 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 passes through its equilibrium po;i/w s5r0hk zusition?

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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 frx,w0jggjm8y * 1(meqf ga-pp+ictionless floor, as shown in the accompanying figure. The block, attached to a massless spring with spring constant k, is initially at itspf8e+j0mgp(j,1x gaq -yw mg* 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 constant k. If the ms6c9hw(ql k8j)cy +a aass is set intch6(l8c s9qa j)ya+w ko simple harmonic motion by a displacement d from its 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 horizontal surface is connected tom(:f cvxt8ql zfo :6xha,j4 a/ the end of a massless spring of sprc:h,oa(j l6:x azt8 qfx 4mf/ving constant k. The 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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