Differences

This shows you the differences between two versions of the page.

--- repository:charged_particles [2021/02/02 23:06]
porcaro1 [Activity Information]
+++ repository:charged_particles [2021/02/02 23:25]
porcaro1
@@ Line 32: / Line 32: @@
 ===Code===
 <code Python [enable_line_numbers="true"]>
+GlowScript 2.7 VPython
+#Created by Meagan Brasseur, Sofia Villanueva, and John Plough on August 9,2019
+##Objects##
+Charge1 = sphere(pos=vec(0,0,0), radius=0.1, color=color.cyan)
+Charge2 = sphere(pos=vec(5,0,0), radius=0.1, color=color.cyan)
+Tcharge = sphere(pos=vec(2.5,2.5,0), radius=0.05, color=color.red)
+#Coulombic charges of our spheres
+q1    = 6.0*10**(-19)
+q2    = 6.0*10**(-19)
+qt    = -1.6*10**(-19)
+##Constants##
+k = 9*10**9
+mTest = 9.11*10**(-31)
+vTest = vec(0,0,0)
+## Create graphs to track force
+Grph1 = graph(title='Force (1) v Distance', xtitle='Distance (m)', ytitle='Force (N)', fast=False, ymin=-1.4E-28, ymax=-1.3E-28) #initialize our graphs.
+F1Graph = gcurve(color=color.green, label='Force of Charge 1 on Test Charge') #Make a graph for the force on the test charge with respect to distance from Charge1.
+Grph1 = graph(title='Force (2) v Distance', xtitle='Distance (m)', ytitle='Force (N)', fast=False, ymin=1.4E-28, ymax=1.3E-28) #initialize our graphs.
+F2Graph = gcurve(color=color.green, label='Force of Charge 2 on Test Charge') #Make a graph for the force on the test charge with respect to distance from Charge2.
+#Set up time variables for while loop
+t=0
+dt=1*10**(-4)
+tf=1
+#While loop to iterate over the time interval
+while t < tf:
+    rate(100)
+# Defines the rate at which the program runs #
+##Hint: For the following calculations, break them up into components!##
+#Come up with an equation for the force on your test charge from Charge 1
+    F1tx =
+    if Tcharge.pos.x <= Charge1.pos.x :
+        F1tx =
+    F1ty =
+    if Tcharge.pos.y <= Charge1.pos.y :
+        F1ty =
+    F1tz =
+    if Tcharge.pos.z <= Charge1.pos.z :
+        F1tz =
+    F1t = vec(F1tx,F1ty,F1tz)
+#    print("F1t = ", mag(F1t))
+##Come up with an equation for the force on your test charge from Charge 2
+    F2tx =
+    if Tcharge.pos.x <= Charge2.pos.x :
+        F2tx =
+    F2ty =
+    Tcharge.pos.y <= Charge2.pos.y :
+        F2ty =
+    F2tz =
+    Tcharge.pos.z <= Charge2.pos.z :
+        F2tz =
+    F2t = vec(F2tx,F2ty,F2tz)
+#
+##Come up with an equation for the net force on your test charge from both charges
+#
+    Fnetx =
+    Fnety =
+    Fnetz =
+    Fnet =
+#Come up with an equation for the net acceleration of your test charge from both charges
+    at =
+    at =
+#Update the position of the test charge using the equation you came up with for acceleration.
+    vTest = vTest + at*dt
+    Tcharge.pos = Tcharge.pos + vTest*dt
+#Graph the Net Force on the Test charge with regards to position.
+    F1Graph.plot(mag(Tcharge.pos),mag(F1t))
+    F2Graph.plot(mag(Tcharge.pos),mag(F2t))
+    t = t + dt
 </code>
 ----
 ====Answer Key====
 ===Handout===
+  - Charge 1 is at the origin (0,0,0), Charge 2 is at (5,0,0), and the Test Charge is at (2.5,2.5,0)
+  - Charge 1 and Charge 2 are both $6.0*10^{-19}$ C, and the Test Charge is $-1.6*10^{-19}$ C.
+  - Because Charge 1 is positive and the the Test Charge is negative, the force will be attractive.
+  - See previous
+  - The Test Charge is located exactly halfway between Charge 1 and Charge 2 and slightly above both. Because the sign and magnitude of Charge 1 and Charge 2 are the same, the force they exert on the test particle will also be the same.
 ===Code===
 <code Python [enable_line_numbers="true", highlight_lines_extra=""]>
 GlowScript 2.7 VPython
 #Created by Meagan Brasseur, Sofia Villanueva, and John Plough on August 9,2019
-#Debugged by Dan Weller August 17,2019
-#Code is still INCOMPLETE
 ##Objects##