Physics LE is a robust online learning environment for introductory physics, providing online homework and quizzes which utilize randomized values, intermediate problem-solving steps, and automatic grading & record keeping.


  • Assignments and quizzes can be quickly assembled using the Physics LE question bank and then made accessible to students online. Students create their own online account using a Physics LE Access Code.
  • Questions employ randomized values assuring each student receives a unique version of the question.
  • Students receive guidance and feedback when solving a problem, with their answers automatically evaluated.
  • Physics Fundamentals eTextbook by Vincent Coletta (960 pages) is included in the Physics LE environment.
  • Physics LE is built on the Moodle platform offering numerous in-depth features along with a reliable and secure online environment.

Physics LE Question Bank

Universal and Comprehensive

The Physics LE question bank is comprised of a comprehensive library of over 2000 questions for algebra-based introductory physics, covering a full-year course. The Physics LE question bank is universal — the extensive collection of questions offer wide versatility, along with varying levels of difficulty, to align with any algebra-based introductory physics course. Individual questions are categorized by general topic headings to provide quick and easy correlation to your course (e.g., acceleration in one-dimension, projectile motion, work and kinetic energy, electric fields, . . . ).

View question topics that are covered in the Physics LE question bank.


  • Many problems contain intermediate problem-solving steps to help guide the student through the problem, also allowing partial credit to be awarded in the event the student's final answer is incorrect.
  • Student scores are recorded automatically in the Physics LE gradebook. Quiz/Assignment overview statistics and student answers to individual questions are provided in summary tables, allowing teachers to quickly capture insights into student performance.


Physics LE Question Bank



Intermediate Problem-Solving Steps
Rather than just requiring students to enter a final numerical value, many Physics LE questions incorporate intermediate problem-solving steps. Intermediate steps include assorted use of: 1) multiple-choice questions checking for understanding and problem-solving approach (using text or diagrams); 2) input of relevant equations or algebraic expressions; and 3) intermediate numerical values which need to be calculated to obtain the final answer. Students receive points for each intermediate step creating a system of partial credit grading.

View example physics questions


Significant Figures and Units
All numerical questions require students to input their answer using the correct number of significant figures and the correct unit. The system is able to recognize equivalent answers using different metric prefixes. Standard significant figure rules are employed for mathematical operations. Leniency is given for those situations where random values lead to some answers (but not others) requiring expression in scientific notation to convey the correct number of significant figures due to the presence of final zeros (see documentation).


Expanding Collection of Questions

The Physics LE question bank is continually growing with new questions being add on a regular basis. In addition, instructors are encouraged to submit questions they would like to have added to the question bank. Instructors simply need to submit questions in written form and the Physics LE team will do the coding.


Physics Fundamentals eTextbook

The Physics Fundamentals eTextbook by Vincent Coletta is built into Physics LE and accessible to every student at no extra cost. The eTextbook is comprised of 30 Chapters, 960 pages, and 1500 photographs and illustrations. The Physics LE question bank directly syncs with all problems contained in the Physics Fundamentals textbook.

Dr. Coletta is a Professor of Physics at Loyola Marymount University in Los Angeles. His research in PER (Physics Education Research) has provided better understanding into student reasoning skills and strategies to address difficulties students encounter in learning physics.

More information about Dr. Coletta's Physics Fundamentals textbook.


Physics LE Statistics & Reports / Gradebook

The Physics LE Statistics & Reports modules allow the instructor to quickly review student performance on an assignment or quiz, this can can help identify patterns and how well students are grasping the material.

The following statistics and reports are generated:

  • Overall assignment or quiz - average score, median score, standard deviation, skewness, error ratio, and standard error. 
  • Individual questions - average score, standard deviation, intended weight, effective weight, and discrimination index.
  • Individual students - overall score and score for each question, as well as responses to individual questions.

The Physics LE Gradebook automatically records student scores in the proper designated category. Custom categories can be created with the desired weighting, and grading curves can be established. The Gradebook can be easily exported in a variety of formats.