Physical Science Unit 3 Lesson 8

What type of wave is a light wave?

• mechanical

• electromagnetic

True or False: Light waves and other electromagnetic waves must have a medium to travel through?

• True

• False

In which medium does light travel the fastest?

• solids

• liquids

• gases

A material that blocks all light and does not allow light to pass through it is _____________________.

• transparent

• translucent

• opaque

A material that allow all light to pass through it is _______________.

• transparent

• translucent

• opaque

A material that allows some of the light that strikes it to pass through it is ____________________.

• transparent

• translucent

• opaque

What object would NOT be transparent?

• clear glass

• water

• air

• wood table

What object would NOT be translucent?

• clear glass

• tinted glass

• clouds

• thin tissue paper

What object would NOT be opaque?

• a brick wall

• a wood table

• tinted car windows

• a metal street sign

Which statement below is false?

• You cannot see thorough an opaque object.

• You can see through a transparent object.

• A translucent material scatters the light and will make the object appear blurry.

• You can see through an opaque object.