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Results: Simultaneity

group Small Group Activity

5 min.

Events on Spacetime Diagrams

Special Relativity Spacetime Diagrams Simultaneity Colocation

Students practice identifying whether events on spacetime diagrams are simultaneous, colocated, or neither for different observers. Then students decide which of two events occurs first in two different reference frames.

assignment Homework

Events on Spacetime Diagrams
Special Relativity Spacetime Diagram Simultaneity Colocation
    1. Which pairs of events (if any) are simultaneous in the unprimed frame?

    2. Which pairs of events (if any) are simultaneous in the primed frame?

    3. Which pairs of events (if any) are colocated in the unprimed frame?

    4. Which pairs of events (if any) are colocated in the primed frame?

  1. For each of the figures, answer the following questions:
    1. Which event occurs first in the unprimed frame?

    2. Which event occurs first in the primed frame?

assignment_ind Small White Board Question

10 min.

Vector Differential--Rectangular

Integration Sequence

In this introductory lecture/SWBQ, students are given a picture as a guide. They then write down an algebraic expression for the vector differential in rectangular coordinates for coordinate equals constant paths.

This activity can be done as a mini-lecture/SWBQ as an introduction to Vector Differential--Curvilinear where students find the vector differential in cylindrical and spherical coordinates..

group Small Group Activity

30 min.

Scalar Surface and Volume Elements

Integration Sequence

Students use known algebraic expressions for length elements \(d\ell\) to determine all simple scalar area \(dA\) and volume elements \(d\tau\) in cylindrical and spherical coordinates.

This activity is identical to Vector Surface and Volume Elements except uses a scalar approach to find surface, and volume elements.

accessibility_new Kinesthetic

10 min.

Using Arms to Represent Overall and Relative Phase in Spin 1/2 Systems

quantum states complex numbers arms Bloch sphere relative phase overall phase Bloch sphere

Arms Sequence for Complex Numbers and Quantum States

Students, working in pairs, use the Arms representations to represent states of spin 1/2 system. Through a short series of instructor-led prompts, students explore the difference between overall phase (which does NOT distinguish quantum states) and relative phase (which does distinguish quantum states).

group Small Group Activity

30 min.

Finding if $S_{x}, \; S_{y}, \; and \; S_{z}$ Commute
//Estimated Time: //

computer Computer Simulation

30 min.

Approximating Functions with Power Series

Taylor series power series approximation

Power Series Sequence (E&M)

Students use a prepared Mathematica notebook to plot \(\sin\theta\) simultaneously with several terms of a power series expansion to judge how well the approximation fits. Students can alter the worksheet to change the number of terms in the expansion and even to change the function that is being considered. Students should have already calculated the coefficients for a power series expansion in a previous activity, Calculating Coefficients for a Power Series.
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