**4. Conclusions**

The purpose of this work was to show the importance of jerk in the context of science and engineering, by conducting a thorough systematic review of recent academic articles (2015–2020) where the term 'jerk' was mentioned in the title. The quality of papers was assessed based on Scientific Journal Rankings (SJR)—Scimago index, from the quartiles Q1 to Q4, where Q1 is occupied by the top 25% of journals, Q2 by the top 25% to 50%, and so on. The articles were then categorised based on the application of jerk in twenty categories. The result of this systematic review showed that, although jerk is overlooked in secondary and higher education, jerk is ubiquitous. Road, rail and sea all have examples of a jerk, from crack initiation to ride comfort. Traditional printing and 3D-printing control systems all contain examples of a jerk. This review has provided a solid foundation for future research on the importance of jerk in different fields. It has identified research gaps which will assist researchers in creating a concise road map toward a more comprehensive study on jerk. The authors also emphasize that jerk is still essentially overlooked in secondary and higher education. This review provides support for teachers and textbook authors who may wish to include examples of jerk in their lessons and textbooks.

Jerk is all around as if we care to listen, feel, open our eyes and observe—from greyhound tracks to roller coasters.

**Author Contributions:** H.A. performed an initial literature search, including historical sources, and also followed up on some references in more detail through contacts with authors. A.-M.P. and D.E., following a collaboration of jerk in trampolines and roller coasters, initiated the research into jerk with a STEM educational context. D.E. suggested a more systematic literature review. H.H. did most of the searching, categorization and writing Conceptualization, H.H., D.E., A.-M.P. and H.A.; methodology, H.H. and D.E.; validation, H.H., D.E., A.-M.P. and H.A.; formal analysis, D.E., A.-M.P. and H.A.; investigation, H.H. and H.A.; resources, D.E.; data curation, H.H.; writing—original draft preparation, H.H. and H.A.; writing—review and editing, H.H., D.E., A.-M.P. and H.A.; visualization, H.H., D.E., A.-M.P. and H.A.; supervision, D.E.; project administration, H.H.; funding acquisition, D.E. All authors have read and agreed to the published version of the manuscript.

**Funding:** The work is funded by Greyhound Racing New South Wales with UTS institution reference of PRO17-3051.

**Conflicts of Interest:** The authors declare no conflict of interest.

## **References**


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