Page 92 - Science Course 3 (Book 2)

Mo10-L6b: What are the Types of Lenses?

Image Created
Mirror Shape Position of Object Virtual/Real Size
Upright/Upside Down
same as
Plane Virtual upright
object
Object more than two focal lengths real upside down smaller than
from mirror object
Object between one and two focal real upside down larger than
lengths object
Concave
Object at focal point none none none

larger than
Object with focal length Virtual upright
object
smaller than
Convex Virtual upright
object

SUMMARY

How Do Ref ections and Mirrors Work?
A mirror is a surface that causes a regular
ref ection. The shape of the ref ecting surface
and the position of the object determine what
the image looks like.

Let’s Begin
Mo10–L6b What are the Types of Lenses?

KEY CONCEPTS: Types of Lenses
1. What types of images are formed by lenses?
A lens is a transparent object with at least one
curved side that causes light to change direction.
Vocabulary A-Z The more curved the sides of a lens, the more the

Let us learn some vocabulary light changes direction as it passes through the lens.

lens
Double
a transparent object with at least one curved side
that causes light to change direction. Concave
Lens

Double
Convex
Lens

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