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The speed of sound waves generally ______ as they move from gases to liquids to solids.

• increases

• decreases

• stay the same

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

When light waves move from empty spaces into matter made of different gases they ____________

• slow down and refract

• slow down and reflect

• speed up

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NGSS.MS-PS4-2

When light interacts with clear glass in windows or doors (called transmission) it _______

• moves through

• bounces off

• reflects

• refracts

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NGSS.MS-PS4-2

Why can we observe different colors through stained glass ?

• some light is absorbed, reflected and refracted

• all light is bsorbed

• light is scattered

Tags

NGSS.MS-PS4-2

Waves move______in denser media because the particles are closer together

• slower

• faster

• in a circle

Tags

NGSS.MS-PS4-2

Refraction of a wave is caused by the change in the waves ________.

• speed

• shape

• light

The echo of sound is produced by refraction or reflection?

• reflection

• refraction

Tags

NGSS.MS-PS4-2

The density of Substance #2 is greater than the density of Substance #1. 

If equal volumes of Substance #1 and Substance #2 were put on a two pan balance, which way would it tip and why?  

• DOWN

• UP

Identify this wave behavior

• absorption

• reflection

• refraction

• transmission

Tags

NGSS.MS-PS4-2

What is the definition of Refraction?

• The bending of waves as they enter a new medium

• When two interfering waves have a displacement in the opposite direction, crest and trough overlap. Zero amplitude.

• When two interfering waves have a displacement in the same direction, two crests and two troughs overlap. Increased amplitude.

Tags

NGSS.MS-PS4-2