PHYSICS – SEMESTER 2 – FINAL EXAM STUDY GUIDE

1) The difference between a longitudinal and transverse wave is:

• Longitudinal waves vibrate parallel to the direction of propagation, while transverse waves vibrate perpendicular to it.

• Longitudinal waves vibrate perpendicular to the direction of propagation, while transverse waves vibrate parallel to it.

• Both waves vibrate in the same direction as propagation.

• There is no difference between longitudinal and transverse waves.

Which of the following correctly describes how amplitude and wavelength are measured on a wave?

• Amplitude is measured from the crest to the trough, and wavelength is measured from crest to crest.

• Amplitude is measured from the rest position to the crest or trough, and wavelength is measured from crest to crest.

• Amplitude is measured from crest to crest, and wavelength is measured from the rest position to the crest.

• Amplitude is measured from the rest position to the trough, and wavelength is measured from trough to trough.

Calculate the wave speed of a cell phone vibrating at 174.5 Hz while producing a wavelength of 1.97 meters.

• 343.77 m/s

• 200.00 m/s

• 85.00 m/s

• 400.00 m/s

A sound wave is what kind of wave?

• Transverse wave

• Longitudinal wave

• Electromagnetic wave

• Surface wave

Sound requires a medium in order to travel because:

• It needs particles to vibrate and transfer energy.

• It can travel through a vacuum.

• It is a form of light energy.

• It does not require any medium.

12) Sound travels faster in which type of air?

• Warm air

• Cold air

• Both equally

• It does not travel in air

Light is a ______ wave. The name of the light particle is ______. These particles ______ have mass.

• transverse; photon; do not

• longitudinal; electron; do

• transverse; proton; do

• longitudinal; photon; do not

Light waves are made up of which of the following?

• Electric and magnetic fields

• Sound vibrations

• Water molecules

• Air particles

The relationship between wavelength and frequency is:

• Directly proportional

• Inversely proportional

• No relationship

• Both increase together

Which has a higher frequency: ultraviolet light or x-rays? Which has a longer wavelength: microwaves or infrared light?

• Ultraviolet light; Infrared light

• X-rays; Microwaves

• X-rays; Infrared light

• Ultraviolet light; Microwaves