Science Fundamentals Ch. 14

In __________ waves, matter in the medium moves perpendicular to the direction the wave travels.

• longitudinal

• sound

• transverse

• light

Tags

NGSS.MS-PS4-1

Which of the following is the best example of a high-amplitude, high-frequency sound?

• a mosquito buzz

• the moo of a cow

• thunder

• a police siren

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Why can't sound waves travel through outer space?

• they are electromagnetic waves

• the gas molecules in outer space air are too far apart

• they are mechanical waves

• they cannot travel through a medium

If a light ray strikes a mirror at an angle of 30 degrees to the normal, what will its angle of reflection be?

• parallel to the normal

• 30 degrees to the normal

• 60 degrees to the normal

• purpendicular to the normal

Tags

NGSS.MS-PS4-2

What is one difference between sound waves and light waves?

• only sound waves can have different wavelengths

• only light waves can travel through a vacuum

• only sound waves can travel through matter

• only light waves can be reflected

How are these two waves different?

• The amplitude of wave 2 is twice the amplitude of wave 1.

• The wavelength of wave 2 is twice the wavelength of wave 1.

• The wave speed of wave 2 is twice the wave speed of wave 1.

• The frequency of wave 2 is twice the frequency of wave 1.

Tags

NGSS.MS-PS4-1

In a longitudinal wave, which property determines how close together the particles are in the compression region?

• amplitude

• frequency

• wavelength

• wave speed

As frequency increases, wavelength __________.

• remains constant

• becomes faster

• increases

• decreases

Tags

NGSS.HS-PS4-1

How does temperature of a medium affect the speed of sound waves?

• Temperature does not affect the speed of sound waves.

• As the temperature of a substance increases, sound waves in it move faster.

• As the temperature of a substance increases, sound waves in it move more slowly.

• As the temperature of a substance decreases, sound waves in it move faster.

Tags

NGSS.MS-PS4-2

Which of the following are units for measuring intensity?

• meters/second

• meters

• decibels

• hertz