Speed of Waves

Vibrations & Waves

The period of a pendulum depends only on its length, mass has no effect.

Wave Calculations

Wave Motion

-sound MUST have a medium to travel through

Multiple Choice

What variable determines the length of a pendulum's period?

• pendulum mass

• pendulum length

• time

Multiple Choice

A wave has a frequency of 13.5 Hz and a speed of 42 m/s. What is the wavelength of the wave?

• 570 m

• 570 m/s

• 3.1 m

• 3.1 m/s

Multiple Choice

Which location represents the amplitude?

• f

• g

• h

• j

Multiple Choice

Which location represents the wavelength?

• f

• g

• h

• j

Multiple Choice

Both sound and light waves do not need a medium to travel through.

• true

• false