Unit 6 - Hooke's Law, Pendulums, and Waves

Which wave has the highest frequency?

• 1
• 2
• 3
• 4

This shows the phenomenon known as....

• reflection
• refraction
• mirrors
• focal point

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4

True/False: The time for a complete back-and-forth swing of a pendulum is its frequency.

• True
• False

The time that it takes to complete one wave cycle is called the...

• frequency
• period
• amplitude
• wavelength

A spring has a spring constant of 330 N/m.  How far is the spring compressed if 150 N of force are used?

• 2.2 m
• 0.0014 m
• 5.0 m
• 0.45 m

What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?

• 1880 N
• 24.7 N
• 1900 N
• 0.127 N

What is the index of refraction of a refractive medium if the angle of incidence in the air (n =1.0003) is 40 degrees and the angle of refraction is 29 degrees?

• 1.32

• 2.06

• 1.523

• 1.586

A ray of light traveling from air into crown glass strikes the surface at an angle of 30 degrees. What is the angle of refraction? (air n=1.0003, crown glass n=1.532)

• 39.7 degrees

• 19.2 degrees

• 59.1 degrees

• 12.3 degrees

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.