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 ofq tt;*vk)qb wl ./7ew-gr ext) a spring oscillates with the displacement versus time graph shown to the right. Which of the following statements about ew/l-qt) *;q rt.twgeb x7)vkits 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 sprin r0ngty:e5h+u b+c:odg and undergoes simple harmonic oscillation. The graph provy:nou +0c: hgteb+dr5ided shows the position of the mass 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 con)92tiy y,4t+n 5xnrh e+ nlg-rju kxo,nected to the end of a spring and undergoes simple harmonic oscillation. The -g)+xrx924yi5hkoyl etrntn u+ ,,jngraph 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 totyk: ,bt(/xj0d6-ul lyxt,x he end of an ideal spring oscillates in simple harmonic motion. The mass’s position is k(xxod,ttlby :u6t ,j0 y-xl/ 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 to a spring obeys x(t) = Acos(wt) . Whabg/ vxfi;(uwz1i-ss- t is the average speed for one full oscillation in terms of the mass’s maximum speed during oscillationzfg uxvsb1(swii-- /; , $V_max$?

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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 undes:q3:c 7xt1f9pdn ljsrgoes 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 t l:7sxsqcfn9:dp31 jseconds. 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 Simple Harmonic Motion. Its motion canxtzk 3esvn;97 be described by thefollowing equation y = (3sk;t e9 x7nzv0.3 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 pullc1.fh;(wt,c9wg hldpzjwy: b7 p: dm( ed to one side and released. It swings freely to the opposite side and stops. Which of the followilz:g dhh w cc w1.yfbjd7 w,p:;mpt((9ng 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 s )dpkum, x7qo1d*k;)wu s*xg ztraight line is given by the velocity vmus 7;,uqg )odpkz*k dx1)w *xs. 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 objeq ,+0.b/juoa xerlwt e9f;ci1 7.fffqct moving along a straight line is given by the velocity vs. time gra; e+fcfq1.,ojafr9l7teqx. 0/wif ub ph 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 positi)4)two8t9 a)lmlt g*:ryx, aeavb n,qon as a function of time shown beb xte a8)nv4atwyao)lm9:tq*, l ,)grlow.
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 horo3/qt ,gx 4d5xxxey5sizontal massless spring with spring constant k; is set into simple harmonic motion. Its maximum displacement from its equilibriu 3x,55qsd oxet/xygx4m 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 r dz 7l7+g*cv4gbb ;t)joo s5dinitially at rest on a frictionless 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 arrrsdb;vg*z7 7j 5 )cl+t oob4dgow 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 smzn)h 2 4i0lcjpring with a spring constant k. If the mass is set into simple i2)mc0ln jzh 4harmonic 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 mam7gfea xwu6:geffsm(w 588( pss M on a horizontal 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. What minimum coefficient of kinetic friction between the surface and the block would prevent the block fro:fg6 swe(p88f a(wmf5 gexm7u m returning to equilibrium with non-zero speed?

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