SCIENCE 9B REVIEW

SCIENCE 9B REVIEW

4Q Pointers to Review

• Regions of Electromagnetic Spectrum

• Uses and Effects of the Different Regions of

  the Electromagnetic Waves

•  Images Formed by the Different Types of

  Mirrors

• Images Formed by the Different Types of

  Lenses

ELECTROMAGNETIC SPECTRUM

The electromagnetic spectrum is the distribution of electromagnetic radiation according to energy, frequency, or wavelength

MIRRORS AND LENSES

Multiple Choice

Rays of light from a point object, after refraction through the lens actually meet to form an image.

• real image

• actual image

• virtual image

Multiple Choice

When an object is placed on the focal point in front of a convex lens, the image produced is ___.

• real, reduced, and inverted

• real, true, and inverted

• real, enlarged, and inverted

• There is no image

Multiple Choice

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

END