For the past 20 years, a constant effort has been made by physics teachers and communication specialists to promote the use of characters from comics or science fiction films in physics teaching practice, because of its positive impact on student motivation and attention. This implementation often comes up against the problem of obtaining…

Archimedes' principle has been and still is a complicated concept to understand by introductory students, especially as typically stated in physics textbooks. Take for example its statement by Bierman: "When a body is fully or partially submerged in a fluid, a buoyant force from the surrounding fluid acts on the body. The force is directed…

Are you frustrated when students focus on "getting the right answer" without understanding why the physics works that way, or even why their own brains came to that conclusion? If so, this might be less about the student and more about the pedagogy--you might be stuck on the "One True Path," a way of thinking "that assumes…

A common homework problem in many introductory physics courses is similar to the following. "A car drives at constant speed over a hill on a road in the shape of a vertical circular arc. What is the maximum speed the car can have and not lose contact with the road at the crest of the hill?" Unfortunately this problem is flawed, because…

An easy circuit for measuring the power of a solar panel in physics classroom by using the microcontroller Arduino will be introduced in this article. The measured data is transferred via Bluetooth to the smartphone app 'phyphox' where it is displayed graphically. The circuitry enables measuring the power of a solar panel in different situations…

Young students show great interest in solar energy and a genuine curiosity towards the operating mechanisms of a solar cell. This study reports on a methodology that reveals an effective approach in explaining the operation of solar cells to young students with very limited knowledge in solid-state physics. The methodology can be presented in the…

Have you ever taught "head on the table" physics students and wondered how to increase engagement? If so, I have two stories for you! Davon and Cynthia--both case study students--struggled with traditional physics but showed great promise with developing personalized physics problems.

Many proofs of the arithmetic mean harmonic mean inequality have been proposed based on the rich connections between mathematics and physics. Sometimes the Arithmetic Mean Harmonic Mean inequality is proved by using electric networks. In this note, we use a simple set of two springs, instead of four springs which would be the equivalent set to…

Physlets, educational applets developed at Davidson College, are a widely used teaching resource designed to simulate a variety of physical phenomena. Originally, each Physlet was a Java simulation that was embedded in an HTML page as an applet and then customized using JavaScript to simulate a specific physics concept. The use of Java to simulate…

In our first-semester introductory physics laboratory, we have an exercise on rotational dynamics. We have recently upgraded the equipment that we use in that exercise without changing the actual exercise. The new equipment has performed well so far, and we wanted to share what we did with others who may be looking for a relatively inexpensive way…

The use of smartphones in experimental physics is by now widely accepted and documented. PASCO scientific's Smart Cart, in combination with student-owned smartphones and free apps, has opened a new universe of low-cost experiments that have traditionally required cumbersome and expensive equipment. In this paper, we demonstrate the simplicity,…

When learning science, students must often make sense of complex and counterintuitive ideas. However, this process of sensemaking is difficult, and consequently students risk emerging from science courses with highly fragmented understandings. In this study, I examine the ways in which students create conceptual connections to resolve such…

Simple energy balance models of planetary systems are of fundamental importance to understanding equilibrium temperatures. Most textbooks that discuss energy balance take a further step and include the effects of an atmosphere on the surface temperature. It is noticeable, however, that in such discussions of planetary surface energy balance some…

Why is modern physics still today, more than 100 years after its birth, the privilege of an elite of scientists and unknown for the great majority of citizens? The answer is simple, since modern physics is in general not present in the standard physics curricula, except for some general outlines, in the final years of some secondary schools. But,…

Exciting examples of physics principles illuminate the power and scope of our discipline. In this paper, we discuss a conservation of energy example for an introductory course. Energy conservation is applied to bird and dinosaur eggs to derive a method to predict the incubation period and the embryonic metabolism solely from the egg geometry. The…