<% ' 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("Quiz_Gravity_Fields_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(13) Dim arFormDBFields0(13) Dim arFormValues0(13) arFormFields0(0) = "formula_force" arFormDBFields0(0) = "formula_force" arFormValues0(0) = Request("formula_force") arFormFields0(1) = "formula_field" arFormDBFields0(1) = "formula_field" arFormValues0(1) = Request("formula_field") arFormFields0(2) = "S1" arFormDBFields0(2) = "S1" arFormValues0(2) = Request("S1") arFormFields0(3) = "math_relation_distance" arFormDBFields0(3) = "math_relation_distance" arFormValues0(3) = Request("math_relation_distance") arFormFields0(4) = "field_action" arFormDBFields0(4) = "field_action" arFormValues0(4) = Request("field_action") arFormFields0(5) = "Name" arFormDBFields0(5) = "Name" arFormValues0(5) = Request("Name") arFormFields0(6) = "field_source" arFormDBFields0(6) = "field_source" arFormValues0(6) = Request("field_source") arFormFields0(7) = "field_units" arFormDBFields0(7) = "field_units" arFormValues0(7) = Request("field_units") arFormFields0(8) = "math_relation_mass1" arFormDBFields0(8) = "math_relation_mass1" arFormValues0(8) = Request("math_relation_mass1") arFormFields0(9) = "math_relation_mass2" arFormDBFields0(9) = "math_relation_mass2" arFormValues0(9) = Request("math_relation_mass2") arFormFields0(10) = "Did_own_work" arFormDBFields0(10) = "Did_own_work" arFormValues0(10) = Request("Did_own_work") arFormFields0(11) = "formula_gabove" arFormDBFields0(11) = "formula_gabove" arFormValues0(11) = Request("formula_gabove") arFormFields0(12) = "fund_forces" arFormDBFields0(12) = "fund_forces" arFormValues0(12) = Request("fund_forces") 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:",_ "Quiz_Gravity_Fields.asp",_ "Return to the form." End If End If Session.CodePage = Session("FP_OldCodePage") Session.LCID = Session("FP_OldLCID") %> Reading Quiz

Reading Quiz: Gravity Fields

Answers must be submitted by 7:30 am Tuesday, Feb. 19 th.

Read CP Chapter 12 (all Sections) and Chapter 13 (Sections 1-3 only) + P3 Chapter 6 p. 141 "The four fundamental forces"

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. According to Newton's law of Universal Gravitation, any object exerts a gravitational force on any other object. Let's say the masses of the two objects are m1 and m2.  What is the mathematical relationship (direct ? inverse ? or something else ?) between the force of gravity made by object 1 on object 2, and the mass m2 of the second object ? (two words or fewer)

2.  What is the mathematical relationship (direct ? inverse ? or something else ?) between the force of gravity made by object 1 on object 2, and the mass m1 of the first object ? (two words or fewer)

3. What is the mathematical relationship (direct ? inverse ? or something else ?) between the force of gravity made by object 1 on object 2, and the distance D between the two objects' centers of mass ? (two words or fewer)

3. What makes a gravitational field ? (3 words or fewer)

4. What does a gravitational field do ? (6 words or fewer)

5. What are the SI units of gravitational field ?

6. Let g be the magnitude of a certain gravitational field. Let m be the mass of an object somewhere in that gravity field. In terms of those two variables, give a formula for the magnitude of the force made by the gravity field on the mass. Fgravity =

7. Give a formula for the magnitude of the gravity field made by an object of mass M at a distance R from the center of the object (R should really be measured from the object's center of mass !). g =

8. Suppose you are standing on the surface of a planet where the gravitational field strength is gsurface. In terms of gsurface, what would be the gravitational field strength gabove at a distance above the surface of the planet equal to the planet's radius ? (For help visualizing what's going on in this question, refer to CP Chapter 12 problem 33)  gabove =

9. If weight is defined as the force of gravity on an object, are space shuttle astronauts in orbit weightless ? Explain briefly.

10. Of the four "fundamental forces," gravity is the (choose one: weakest or strongest) ? (one word) 

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