Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Lesson 14 mirrors & lenses part ii
1. Case 1: Object is behind the focal point.
- ???
D. Goldsberry 3/10/12
2. Object is outside focal point – real image
that is inverted and smaller (object
becomes larger as the object is moved
towards the mirror)
http://www.glenbrook.k12.il.us/gbssci/phys/Class/refln/u13l3d.html
http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/optics/ifcma.html
http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/optics/rdcma.html
http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/optics/rdcmc.html
D. Goldsberry 3/10/12
3. Case 1: Object is behind the focal point.
D. Goldsberry 3/10/12
4. Case 2: Object is in front of the focal point.
D. Goldsberry 3/10/12
5. Case 2: Object is in front of the focal point.
D. Goldsberry 3/10/12
6. Object is inside the focal point
– virtual image that is upright
and enlarged
http://www.glenbrook.k12.il.us/gbssci/phys/mmedia/opti
cs/rdcmb.html
D. Goldsberry 3/10/12
7. Object is at the focal point –
no image
D. Goldsberry 3/10/12
8. 1)Headlights and flashlights – helps to
project the light
2) Solar cookers – focus the light on
the food
3) Mirage at Mrs. Goldsberry’s desk
What additional uses can you think of
for a concave mirror?
D. Goldsberry 3/10/12
9. A lens is a transparent
object with at least one
curved side that causes
light to bend.
D. Goldsberry 3/10/12
10. Convex lenses
A. Thicker in the center than at the edges
B. Bends light to a focal point
C. Can produce both real and virtual images
D. Can produce upright or upside down images
E. Can produce enlarged or reduced images
F. Similar to image produced by concave
mirror
D. Goldsberry 3/10/12
12. A concave lens forms a real image if the
object is beyond the focal point
D. Goldsberry 3/10/12
13. A concave lens forms a virtual image if the
object is in front of the focal point
D. Goldsberry 3/10/12
14. Concave lenses
A. Thicker at the edges than in the center
B. Spread light out (diverge)
C. Image is virtual, upright, and smaller
than object
D. Similar to image produced by a
convex mirror
D. Goldsberry 3/10/12
