NGSS.MS-PS4-2

Sound will travel slowest through which of the following forms of matter?

• milk
• desk
• air
• door

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NGSS.MS-PS4-2

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

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NGSS.MS-PS4-2

A mechanical wave cannot travel through...

• a vacuum(empty space).
• water.
• air. 
• glass.

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NGSS.MS-PS4-2

What is the MOST important property architects must consider when selecting materials for the walls, ceilings, and floors for a new concert hall?

• thermal properties
• chemical properties
• electrical properties
• acoustical properties
  

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NGSS.MS-PS4-2

Which shows a use of microwaves?

• 
• 
• 
• 

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NGSS.MS-PS4-2

We can see things around us because of light reflecting off the object and into our eyes?

• True

• False

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NGSS.MS-PS4-2

This model represents a

• P wave shadow zone

• S wave shadow zone

• Surface wave shadow zone

• Convection currents

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NGSS.MS-PS4-2

What causes light to slow down?

• moving into a lighter medium

• moving into a vacuum

• moving into a less adhesive medium

• moving into a denser medium

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NGSS.MS-PS4-2

According to the law of reflection the angle of incidence is ____________ the angle of reflection.

• less than

• greater than

• equal to

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NGSS.MS-PS4-2

A mirror is

• opaque.

• transparent

• translucent.

• flexible

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NGSS.MS-PS4-2