Spring Semester Exam

Sound waves travel through water by —

• passing through spaces between water molecules

• being absorbed and then emitted by water molecules

• causing water molecules to compress and move apart

• vibrating water molecules perpendicular to the direction of sound motion

Tags

NGSS.MS-PS4-2

Which of the following is necessary for light to propagate?

• Air

• Ether

• Matter

• None of these are necessary.

Tags

NGSS.MS-PS4-2

Calculate the speed of a periodic wave that has a wavelength of 2.0 m and a frequency of 3.0 Hz.

• 2.0 m/s

• 5.0 m/s

• 6.0 m/s

• 12.0 m/s

Tags

NGSS.HS-PS4-1

As the amplitude of a mechanical wave increases, which of the following quantities increases?

• Speed

• Wavelength

• Frequency

• Energy

Tags

NGSS.MS-PS4-1

What is the wavelength of the wave according to the Displacement v. Length graph above?

• 0.25 m

• 0.5 m

• 1.0 m

• 2.0 m

Tags

NGSS.MS-PS4-1

Which of the following properties of a wave cannot be changed by reducing wave velocity?

• Wavelength

• Frequency

• Amplitude

• Energy

Tags

NGSS.HS-PS4-1

A student creates a graph of position v. time for the height of a floating buoy as ocean waves go by. What is the amplitude of the buoy based on the graph above?

• 2.0 m

• 2.5 m

• 5.0 m

• The amplitude varies depending on the time.

Tags

NGSS.MS-PS4-1

A student creates a graph of position v. time for the height of a floating buoy as ocean waves go by. Refer to the graph above. At what time will the buoy be at a crest?

Tags

NGSS.MS-PS4-1

What electromagnetic wave travels the fastest?

• Microwave

• Ultraviolet

• X-ray

• All travel at the speed of light 'c'.

A sound wave is propagating through the air from left to right as shown in the diagram below.

• electromagnetic

• longitudinal

• pulse

• transverse

Tags

NGSS.MS-PS4-1