Mr. Putman's 8th Grade Science Chapter 19

The material in which a wave travels is called ____.

• a medium
• water
• air
• opaque

Glass is an example of a ____ material.

• translucent
• medium
• opaque
• transparent

If an object looks blue, it reflects ____ waves.

• blue
• red and yellow
• all but blue
• all

What is the name of the line drawn perpendicular to the surface where a light ray strikes?

• incoming ray
• reflected ray
• normal
• vertical

How can you describe the image formed by a plane mirror?

• inverted and reversed
• inverted and not reversed
• upright and reversed
• upright and not reversed

How would you describe the image formed by a convex mirror?

• upright and larger than object
• upright and smaller than object
• inverted and larger than object
• inverted and smaller than object

If light waves change speed when they pass from one medium into another, the light will be ____.

• diffracted
• reflected
• separated 
• refracted

Which one of the following is thick in the middle and thin at the edges?

• concave lens
• convex lens
• concave mirror
• plane mirror

Microscopes use ____ lenses.

• one
• two
• three
• four

Which one of the following uses a lens and two mirrors?

• binoculars
• microscope
• reflecting telescope
• refracting telescope