S8P4 D

What type of wave does the speaker produce for sound to be heard?

• electromagnetic

• longitudinal

• surface

• transverse

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Point A in the figure is a rarefaction. Point B is a compression. Point C is a location in the air at normal air pressure before the sound wave has arrived. Which statement is true of the pressure at points A, B, and C?

• The pressure at Point A is greatest.

• The pressure at Point B is the greatest.

• The pressure at Point C is the greatest.

• The pressure at all three points is equal.

Tags

NGSS.MS-PS4-2

Which statement best compares how sound waves travel through the media shown above?

• Sound waves travel at the same speed through all three media shown.

• Sound waves move faster through media B than media A.

• Sound waves move faster through media C than media B.

• Sound waves move faster through media A than media C.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of these statements best explains why it is difficult to see outside at night?

• objects become their own light sources in the presence of the Sun

• human eyes are only able to see objects when sunlight creates shadows

• without a light source, objects cannot reflect light to the eyes to be seen

• at night, objects absorb light instead of reflect it, so the eyes are unable to see

Which sound wave best shows reflection?

• 1

• 2

• 3

Tags

NGSS.MS-PS4-2

A student shines a thin beam of light onto a prism. The light contains wavelengths of red, blue, green, and yellow light. The diagram below shows how the four colors of light exit the prism at different angles.

• red light

• blue light

• green light

• yellow light

Tags

NGSS.MS-PS4-2

A convex lens bulges outward in its center, and it refracts light rays towards its center. Which represents a convex lens?

• A

• B

• A and B

• Neither A nor B

Tags

NGSS.MS-PS4-2

Sound becomes softer at a distance because the ________________.

• wavelength gets longer with distance, decreasing its amplitude

• energy of the sound wave is spread over a greater area, decreasing its intensity

• frequency of the sound wave becomes higher, increasing its pitch

• speed of the wave increases with distance, decreasing its frequency

Tags

NGSS.MS-PS4-1

As air temperature _________, the speed of the sound wave ___________.

• decreases; increases

• increases; decreases

• decreases; decreases

• The temperature of the air does not affect the speed of the sound wave.

Tags

NGSS.HS-PS4-5

Which type of wave would actually slow down when moving from the air into the ocean?

• sound waves

• light waves

• earthquake waves

• ocean surface waves

Tags

NGSS.MS-PS4-2