Oscillations and Waves

A force of  30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring?

• 41 N/m
• 22 N/m
• 34 N/m
• 46 N/m

A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.

• 2 sec
• 12 sec
• 8 sec
• 10 sec

Which would have the longest period?

Pendulum A: A 200-g mass attached to a 1.0-m length string

Pendulum B: A 400-g mass attached to a 0.5-m length string

• A

• B

• Same

A pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet.  What is the gravity of the Unknown Planet?

• 9.8
• 3.4
• 1.7
• Greater than 9.8

Tags

NGSS.HS-PS2-4

What kind of wave can travel through space?

• electromagnetic waves
• compressional waves
• transverse waves
• longitudinal waves

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

A wave carries...?

• energy only
• matter only
• the matter carries the energy
• neither

Tags

NGSS.MS-PS4-1

If an AM radio station broadcasts at 995 kHz, what is the wavelength of this radiation? (Convert to Hz first).

• 6.59 e-28 m

• 1.01 e-6 m

• 3.32 e-3 m

• 301 m

Violet light has a wavelength of 410 nm. What is the frequency?

• 1.23 e-3 Hz

• 7.31 e14 Hz

• 1.37 e12 Hz

• 3.0 e8 Hz

A mass attached to a spring vibrates back and forth. At the equilibrium position, the

• acceleration reaches a maximum.
• velocity reaches a maximum.
• net force reaches a maximum.
• velocity reaches zero.

By what factor should the length of a simple pendulum be changed in order to triple the period of vibration?

• 3
• 6
• 9
• 27