5_3-Clickers-Simple Harmonic Motion

5_3-Clickers-Simple Harmonic Motion - 6 A mass m oscillates...

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1 Consider a super ball which bounces up and down on super concrete. After the ball is dropped from an initial height h, it bounces with no dissipation and executes an infinite number of bounces back to height h. Is the motion of the ball in z simple harmonic motion? A) yes B) no C) ???
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2 Based on the pictures what is the period of motion of the block? A) .2 s B) .4 s C) .6 s D) .8 s E) None of these/ not enough info!
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3 For a simple harmonic oscillator (mass on a spring), what happens to the period of motion if the spring constant is increased? A) Increases B) decreases C) unchanged
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4 For a simple harmonic oscillator (mass on a spring), what happens to the period of motion if the mass is increased by 4? A) Increases by 2x B) Increases by 4x C) unchanged D) Decreases by 2x E) Decreases by 4x
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5 For a simple harmonic oscillator (mass on a spring), what happens to the period of motion if the initial displacement is increased by 4? A) Increases by 2x B) Increases by 4x C) unchanged D) Decreases by 2x E) Decreases by 4x
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Unformatted text preview: 6 A mass m oscillates at the end of a spring (constant k) It moves between x=.1 m to x=.5 m. The block is at x=0.3 m at t=0 s, moves out to x=0.5 m and returns to x=0.3 m at t=2 s. Write the motion in the form x(t)=x0+Acos( t+), and find numerical values for x0, A, , and If time: Write the motion in the form x(t)=x0+Asin( t+), and find numerical values for x0, A, , and 7 k 2k m Neglecting all damping, and considering just 1D motion, what is the angular frequency at which this mass will oscillate? (The mass is at the equilibrium position for both springs at the point shown) A) Sqrt[k/m] B) Sqrt[1.5 k/m] C) Sqrt[3k/m] D) Sqrt[5k/m] E) Something else! 8 Oscillators have xi(t)=Aicos( i t-i) (for i=1, 2) Which parameters are different ? Assuming both s are positive, and close to each other, which is larger, 1 or 2? A) 1 or B) 2...
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5_3-Clickers-Simple Harmonic Motion - 6 A mass m oscillates...

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