NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 10 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Porat, Gilit; Kapon, Shulamit – Physics Teacher, 2018
Although the teaching of mechanics at advanced K12 levels often starts with a brief introduction to physical quantities and units, the nature and function of measurements in physics and their inherent uncertainty are hardly ever discussed. The laboratory is mainly used to illustrate the theoretical principles taught in class. This paper presents a…
Descriptors: Physics, Science Instruction, Mechanics (Physics), High School Students
Peer reviewed Peer reviewed
Direct linkDirect link
Lamore, Brian – Physics Teacher, 2016
For years the fan cart has provided physics students with an excellent resource for exploring fundamental mechanics concepts such as acceleration, Newton's laws, impulse, momentum, work-energy, and energy conversions. "The Physics Teacher" has even seen some excellent do-it-yourself (DIY) fan carts and activities. If you are interested…
Descriptors: Physics, Science Instruction, Mechanics (Physics), Motion
Peer reviewed Peer reviewed
Direct linkDirect link
Tarnopolski, Mariusz – Physics Teacher, 2015
Let us consider a classical high school exercise concerning two weights on a pulley and a string, illustrated in Fig. 1(a). A system like this is called an Atwood's machine and was invented by George Atwood in 1784 as a laboratory experiment to verify the mechanical laws of motion with constant acceleration. Nowadays, Atwood's machine is used for…
Descriptors: Science Instruction, Secondary School Science, High Schools, Mechanics (Physics)
Peer reviewed Peer reviewed
Direct linkDirect link
Olson, Don; Hook, Joseph; Doescher, Russell; Wolf, Steven – Physics Teacher, 2015
This month marks the 75th anniversary of the Tacoma Narrows Bridge collapse. During a gale on Nov. 7, 1940, the bridge exhibited remarkable oscillations before collapsing spectacularly (Figs. 1-5). Physicists over the years have spent a great deal of time and energy studying this event. By using open-source analysis tools and digitized footage of…
Descriptors: Scientists, Mechanics (Physics), Films, Video Technology
Peer reviewed Peer reviewed
Direct linkDirect link
Humphrey, T. E.; Calisa, Vaishnavi – Physics Teacher, 2014
In 1879, in the midst of the debate between English and continental scientists about the nature of cathode rays, William Crookes conducted an experiment in which a small mill or "paddle wheel" was pushed along tracks inside a cathode ray tube (CRT) (similar to that shown in Fig. 1) when connected to a high-voltage induction coil. Crookes…
Descriptors: Demonstrations (Educational), Motion, Scientific Concepts, Mechanics (Physics)
Peer reviewed Peer reviewed
Direct linkDirect link
Jumper, William D. – Physics Teacher, 2012
Many high school and introductory college physics courses make use of mousetrap car projects and competitions as a way of providing an engaging hands-on learning experience incorporating Newton's laws, conversion of potential to kinetic energy, dissipative forces, and rotational mechanics. Presented here is a simple analytical and finite element…
Descriptors: Physics, Hands on Science, Mechanics (Physics), Kinetics
Peer reviewed Peer reviewed
Direct linkDirect link
Beeken, Paul – Physics Teacher, 2011
While perusing various websites in search of a more challenging lab for my students, I came across a number of ideas where replacing the string in an Atwood's machine with a simple ball chain like the kind found in lamp pulls created an interesting system to investigate. The replacement of the string produced a nice nonuniform acceleration, but…
Descriptors: Physics, Laboratory Experiments, Science Experiments, Science Instruction
Peer reviewed Peer reviewed
Direct linkDirect link
Denny, Mark – Physics Teacher, 2011
The internal ballistics of a firearm or artillery piece considers the pellet, bullet, or shell motion while it is still inside the barrel. In general, deriving the muzzle speed of a gunpowder firearm from first principles is difficult because powder combustion is fast and it very rapidly raises the temperature of gas (generated by gunpowder…
Descriptors: Weapons, Mechanics (Physics), Science Instruction, Scientific Principles
Peer reviewed Peer reviewed
Direct linkDirect link
O'Brien, Michael J.; Thompson, John R. – Physics Teacher, 2009
The Physics First movement--teaching a true physics course to ninth-grade students--is gaining popularity in high schools. There are several different rhetorical arguments for and against this movement, and it is quite controversial in physics education. However, there is no actual evidence to assess the success, or failure, of this substantial…
Descriptors: Teaching Methods, Grade 9, Science Instruction, Secondary School Science
Peer reviewed Peer reviewed
Direct linkDirect link
Paul, Prabasaj; Symes, Laurel B. – Physics Teacher, 2008
Ballistocardiograms (BCGs) are graphical representations of the recoil from the pumping action of the heart. Introductory mechanics and a basic knowledge of the circulatory system are sufficient to understand the key features of a BCG. BCGs with adequate detail for instructional purposes may be produced easily and rapidly using hardware (a force…
Descriptors: Mechanics (Physics), Biomechanics, Demonstrations (Educational), Interdisciplinary Approach