<% ' FP_ASP ASP Automatically generated by a Frontpage Component. Do not Edit. On Error Resume Next Session("FP_OldCodePage") = Session.CodePage Session("FP_OldLCID") = Session.LCID Session.CodePage = 1252 Err.Clear strErrorUrl = "" If Request.ServerVariables("REQUEST_METHOD") = "POST" Then If Request.Form("VTI-GROUP") = "0" Then Err.Clear Set fp_conn = Server.CreateObject("ADODB.Connection") FP_DumpError strErrorUrl, "Cannot create connection" Set fp_rs = Server.CreateObject("ADODB.Recordset") FP_DumpError strErrorUrl, "Cannot create record set" fp_conn.Open Application("PH 318 Quiz_Pinholes_Shadows2_ConnectionString") FP_DumpError strErrorUrl, "Cannot open database" fp_rs.Open "Results", fp_conn, 1, 3, 2 ' adOpenKeySet, adLockOptimistic, adCmdTable FP_DumpError strErrorUrl, "Cannot open record set" fp_rs.AddNew FP_DumpError strErrorUrl, "Cannot add new record set to the database" Dim arFormFields0(30) Dim arFormDBFields0(30) Dim arFormValues0(30) arFormFields0(0) = "pinhole_camera_fuzzy_image_reasons_11b" arFormDBFields0(0) = "pinhole_camera_fuzzy_image_reasons_11b" arFormValues0(0) = Request("pinhole_camera_fuzzy_image_reasons_11b") arFormFields0(1) = "large_hole_fuzziness_reason_12b1" arFormDBFields0(1) = "large_hole_fuzziness_reason_12b1" arFormValues0(1) = Request("large_hole_fuzziness_reason_12b1") arFormFields0(2) = "large_hole_fuzziness_reason_12b2" arFormDBFields0(2) = "large_hole_fuzziness_reason_12b2" arFormValues0(2) = Request("large_hole_fuzziness_reason_12b2") arFormFields0(3) = "large_hole_fuzziness_reason_12b3" arFormDBFields0(3) = "large_hole_fuzziness_reason_12b3" arFormValues0(3) = Request("large_hole_fuzziness_reason_12b3") arFormFields0(4) = "pinhole_camera_fuzzyimage_reasons_11a" arFormDBFields0(4) = "pinhole_camera_fuzzyimage_reasons_11a" arFormValues0(4) = Request("pinhole_camera_fuzzyimage_reasons_11a") arFormFields0(5) = "shadow_shape_2a" arFormDBFields0(5) = "shadow_shape_2a" arFormValues0(5) = Request("shadow_shape_2a") arFormFields0(6) = "shadow_shape_2b" arFormDBFields0(6) = "shadow_shape_2b" arFormValues0(6) = Request("shadow_shape_2b") arFormFields0(7) = "sunlight_shadows_8a1" arFormDBFields0(7) = "sunlight_shadows_8a1" arFormValues0(7) = Request("sunlight_shadows_8a1") arFormFields0(8) = "diffraction_def" arFormDBFields0(8) = "diffraction_def" arFormValues0(8) = Request("diffraction_def") arFormFields0(9) = "small_hole_fuzziness_reason_12a1" arFormDBFields0(9) = "small_hole_fuzziness_reason_12a1" arFormValues0(9) = Request("small_hole_fuzziness_reason_12a1") arFormFields0(10) = "sunlight_shadows_8a2" arFormDBFields0(10) = "sunlight_shadows_8a2" arFormValues0(10) = Request("sunlight_shadows_8a2") arFormFields0(11) = "small_hole_fuzziness_reason_12a2" arFormDBFields0(11) = "small_hole_fuzziness_reason_12a2" arFormValues0(11) = Request("small_hole_fuzziness_reason_12a2") arFormFields0(12) = "sunlight_shadows_8a3" arFormDBFields0(12) = "sunlight_shadows_8a3" arFormValues0(12) = Request("sunlight_shadows_8a3") arFormFields0(13) = "small_hole_fuzziness_reason_12a3" arFormDBFields0(13) = "small_hole_fuzziness_reason_12a3" arFormValues0(13) = Request("small_hole_fuzziness_reason_12a3") arFormFields0(14) = "sunlight_shadows_8a4" arFormDBFields0(14) = "sunlight_shadows_8a4" arFormValues0(14) = Request("sunlight_shadows_8a4") arFormFields0(15) = "pinhole_camera_image_9a" arFormDBFields0(15) = "pinhole_camera_image_9a" arFormValues0(15) = Request("pinhole_camera_image_9a") arFormFields0(16) = "pinhole_camera_image_9b" arFormDBFields0(16) = "pinhole_camera_image_9b" arFormValues0(16) = Request("pinhole_camera_image_9b") arFormFields0(17) = "umbra_def_4" arFormDBFields0(17) = "umbra_def_4" arFormValues0(17) = Request("umbra_def_4") arFormFields0(18) = "pinhole_camera_image_9c" arFormDBFields0(18) = "pinhole_camera_image_9c" arFormValues0(18) = Request("pinhole_camera_image_9c") arFormFields0(19) = "Name" arFormDBFields0(19) = "Name" arFormValues0(19) = Request("Name") arFormFields0(20) = "shadows_formation_1" arFormDBFields0(20) = "shadows_formation_1" arFormValues0(20) = Request("shadows_formation_1") arFormFields0(21) = "fuzzy_edged_shadows_3a" arFormDBFields0(21) = "fuzzy_edged_shadows_3a" arFormValues0(21) = Request("fuzzy_edged_shadows_3a") arFormFields0(22) = "pinhole_camera_image_9d" arFormDBFields0(22) = "pinhole_camera_image_9d" arFormValues0(22) = Request("pinhole_camera_image_9d") arFormFields0(23) = "fuzzy_edged_shadows_3b" arFormDBFields0(23) = "fuzzy_edged_shadows_3b" arFormValues0(23) = Request("fuzzy_edged_shadows_3b") arFormFields0(24) = "light_source_seen_from_umbra_5" arFormDBFields0(24) = "light_source_seen_from_umbra_5" arFormValues0(24) = Request("light_source_seen_from_umbra_5") arFormFields0(25) = "penumbra_def_6" arFormDBFields0(25) = "penumbra_def_6" arFormValues0(25) = Request("penumbra_def_6") arFormFields0(26) = "light_source_seen_from_penumbra_7a" arFormDBFields0(26) = "light_source_seen_from_penumbra_7a" arFormValues0(26) = Request("light_source_seen_from_penumbra_7a") arFormFields0(27) = "light_source_seen_from_penumbra_7b" arFormDBFields0(27) = "light_source_seen_from_penumbra_7b" arFormValues0(27) = Request("light_source_seen_from_penumbra_7b") arFormFields0(28) = "Did_own_work" arFormDBFields0(28) = "Did_own_work" arFormValues0(28) = Request("Did_own_work") arFormFields0(29) = "light_source_seen_from_penumbra_7c" arFormDBFields0(29) = "light_source_seen_from_penumbra_7c" arFormValues0(29) = Request("light_source_seen_from_penumbra_7c") FP_SaveFormFields fp_rs, arFormFields0, arFormDBFields0 If Request.ServerVariables("REMOTE_HOST") <> "" Then FP_SaveFieldToDB fp_rs, Request.ServerVariables("REMOTE_HOST"), "Remote_computer_name" End If If Request.ServerVariables("HTTP_USER_AGENT") <> "" Then FP_SaveFieldToDB fp_rs, Request.ServerVariables("HTTP_USER_AGENT"), "Browser_type" End If FP_SaveFieldToDB fp_rs, Now, "Timestamp" If Request.ServerVariables("REMOTE_USER") <> "" Then FP_SaveFieldToDB fp_rs, Request.ServerVariables("REMOTE_USER"), "User_name" End If fp_rs.Update FP_DumpError strErrorUrl, "Cannot update the database" fp_rs.Close fp_conn.Close FP_FormConfirmation "text/html; charset=windows-1252",_ "Form Confirmation",_ "Thank you for submitting the following information:",_ "PH%20318%20Quiz_Pinholes_Shadows.asp",_ "Return to the form." End If End If Session.CodePage = Session("FP_OldCodePage") Session.LCID = Session("FP_OldLCID") %> Reading Quiz: Light

Reading Quiz: Pinholes and Shadows

Answers must be submitted by 8am Tuesday, October 16th.

For answering the below questions you may use any of the following sources: lab findings, assigned readings from Light Science and Conceptual Physics, Internet Research. Concise and well thought answers are appreciated.

http://www.physics.utoledo.edu/~lsa/_color/07_shadows.htm

http://homepage.mac.com/cbakken/obookshelf/shadows.html

Enter your last name, first initial:  

Click here to indicate that you have read the assigned material and are answering the reading questions on your own.

1.   How do shadows form?

 

2.  What determines the "shape" of a shadow?


 a) (2 words)

 b) (3 words)

3. Why are most shadows fuzzy-edged?

Due to:

 a) (4 words)

 and to:

 b) (4 words)

4. The "umbra" of a shadow is:


  (7 words)

5. If one is in the umbra of an object, the light source is:

    (2 words)

6.. The "penumbra" of a shadow is:


  (9 words)

7.  If one is in the penumbra of an object, the light source is:

      (2 words)

 to a or degree as one move through the penumbra.

8. Sunlight shadows are bluish in color. Why?

  a) The umbra of a shadow is not absolutely black because there is always    (1 word) light that makes its way into it. In the case of sunlight, the (1 word) light is mostly bluish (2 words), so shadows are (1 word) than normal.  

9. How does a pinhole camera produce an image?

 Rays (2 words) objects in all directions. The pinhole in the front of the camera  (1 word) only the rays traveling in the direction of the pinhole. These rays pass into the camera and strike the (2 words). The front and side walls     (1 word) that point on the back from rays coming from different points of origin.

 

10. Diffraction is:

(8 words)

11. What are the two reasons why a pinhole camera makes fuzzy images?

 a) (10 words)

 b) (4 words)

12.

a) Which one of the reasons is more important for small holes?

(2 to 4 words)

 A smaller the   (4 words) gives a (1 word) blur by diffraction.

 

b) Which one of the reasons is more important for large holes?

(4 words)

 

 A greater (4 words) to the back of the camera a (1 word) blur by diffraction.

 

When you've finished, click on SUBMIT.
(Make sure you haven't skipped any questions unintentionally)