SHM/Waves 20 Questions

The mass in the picture is pushed 50 cm toward the wall and released. A student times 5 complete cycles in 15 seconds. Determine the acceleration of the block 1.5 seconds after the block is released.

• -0.114 m/s²

• +0.114 m/s²

• -2.2 m/s²

• +2.2 m/s²

What factors effect the period of a pendulum?

• mass and length

• mass and amplitude

• amplitude and length

• length and location in the universe

Determine the maximum speed of a 2 kg mass in SHM on a spring (k=112 N/m). Determine the speed exactly half way between x=0 and x=A. Express your answers in terms of A.

• 7.5A, 6.5A

• 4.2A, 3.3A

• 1.9A, 0.7A

• 0.6A, 0.3A

Which graphs on the board correctly depict the position, velocity, and acceleration for the mass when pulled out to +A and released?

• A

• B

• C

• D

Light is a ________________ wave and sound is a _______________ wave.

• Transverse, Transverse

• Longitudinal, Longitudinal

• Transverse, Longitudinal

• Longitudinal, Transverse

The velocity of a wave is determined by which of the following?

• The physical properties of the medium

• The wave's frequency

• The wavelength of the wave

• The amplitude and period of the wave

A tuba has an effective length of 1.9 meters. Determine the frequency of the 1st harmonic if a tuba is considered an open tube. Assume the temperature of the room is 25°C.

• 182 hz

• 112 hz

• 91 hz

• 55 hz

The same tuba, the one with a length of 1.9 meters creates a standing wave at the 9th overtone. Use the temperature of 20°C to determine the wavelength of the wave.

• 0.38 m

• 0.19 m

• 0.76 m

• 2.85 m

A guitar string is plucked and vibrates at its natural frequency. If the tension in the string is increased, what is true about the following quantities: wave speed, frequency, wavelength, and µ.

• increase, same, increase, and same

• increase, increase, same, and same

• increase, same, decrease, same

• decrease, decrease, increase, decrease

A known frequency of 256 hz is chimed at the same time as an unknown frequency. A resultant beat frequency of 2.5 hz is created. If the unknown source sounds higher in pitch, what is the frequency of the unknown source?

• depends on whether you chime them simultaneously or not

• 256 hz

• 235.5 hz

• 258.5 hz