Page 1 of 5 CTWaves 1 Is The Wave at the stadium a transverse wave or a longitudinal wave A Transverse B Longitudinal C neither Answer Transverse CTWaves 2 A wave on a stretched drum head is an example of a A Transverse wave B Longitudinal wave C it s not a wave at all Answer Transverse CTWaves 3 The graph below shows a snapshot of a wave on a string which is traveling to the right There is a bit of paint on the string at point P y vwave P x At the instant shown the velocity of paint point P has which direction Answer downward A B D C E None of these At the instant shown the acceleration of the particle has which direction Same choices Answer downward Phys1120 Concept Tests M Dubson University of Colorado at Boulder Page 2 of 5 CTWaves 4 Three waves are traveling along identical strings same mass per length same tension same everything Wave B has twice the amplitude of the other two Wave C has 1 2 the wavelength than A or B Which Wave goes slowest A B C D All have same v Answer All have same v In general the speed of a wave depends on the properties of the medium vwave y A x y B x y C x Which wave has the highest frequency A B C D All 3 have the same frequency Answer C Phys1120 Concept Tests M Dubson University of Colorado at Boulder Page 3 of 5 CTWaves 5 Consider the equation x v t where v and are constants The variable x is position and t is the time A point x that obeys this equation is a point that A B C D E increases moves to the right with speed v decreases moves to the left with speed v is constant x not moving increases moves to the right with speed decreases moves to the left with speed Answer increases moves to the right with speed v CTWaves 6 Two traveling waves 1 and 2 are described by the equations y1 x t 2 sin 2 x t y 2 x t 4 sin x 2 t All the numbers are in the appropriate SI mks units Which wave has the higher speed A 1 B 2 C Both have the same speed The wavelength of wave 1 is most nearly A 1m B 2m C 3m D 4m The period of wave 2 is most nearly A 1s B 2 s C 3 s D 4 s Answers Wave 2 has the higher speed The wavelength of wave 1 is about 3 m m to be exact The period of wave 2 is about 3 s Phys1120 Concept Tests M Dubson University of Colorado at Boulder Page 4 of 5 CTWaves 7 Two impulse waves are approaching each other as shown Which picture correctly shows the total wave when the two waves are passing through each other A B C D Answer D Phys1120 Concept Tests M Dubson University of Colorado at Boulder Page 5 of 5 CTWaves 8 When you turn up the volume on your sound system A the speaker cone oscillates back and forth more rapidly completing more cycles per second B the speaker cone oscillates back and forth more slowly completing fewer cycles per second C the speaker cones oscillates back and forth a farther distance in each cycle D the speaker cones oscillates back and forth a shorter distance in each cycle E None of these Answer C CTWaves 9 Three pressure waves in air sound waves all with the mathematical form x t y x t A sin 2 are labeled A B and C Which sound is the loudest and T which is the highest pitch y A x y B x y C x Answer B is loudest highest amplitude and C is highest pitch highest frequency shortest wavelength Phys1120 Concept Tests M Dubson University of Colorado at Boulder
View Full Document
Unlocking...