New Resources for Mastering Physics Concepts
New tools are being shared to help students master pre-med physics. An ASE Echo Magazine article offers practical tricks for understanding principles relevant to the MCAT. Meanwhile, a viral video is demonstrating Lissajous machines as a way to visualize complex wave and frequency concepts.
The *ASE Echo Magazine* is a bimonthly online publication for members of the American Society of Echocardiography, featuring articles on cardiovascular ultrasound. Submissions are open to all active ASE members and cover a range of topics related to the field, not just research findings. Writing for the magazine can even help members qualify for the prestigious Fellow of the American Society of Echocardiography (FASE) designation. Physics concepts make up approximately 25% of the MCAT's Chemical and Physical Foundations of Biological Systems section, which equates to about 15 questions. Key topics include mechanics, fluids, electrostatics, circuits, light and optics, and waves and sound. While many of these are covered in introductory, algebra-based physics courses, students often find rotational motion, periodic motion, and topics like work and energy to be conceptually difficult. Lissajous figures, which are produced by the intersection of two simple harmonic motions at right angles, have a long history in physics education. They were first investigated by Nathaniel Bowditch in 1815 and later studied by French scientist Jules Antoine Lissajous in 1857. Historically, these patterns were demonstrated using light beams reflected from mirrors attached to tuning forks. Modern demonstrations of Lissajous figures can be created with more accessible materials like vibrating hacksaw blades, mirror tiles, and laser pointers. The shape of the curve is determined by the ratio of the frequencies of the two perpendicular oscillations. When this ratio is a rational number, the curve is closed and loops back on itself, creating a stable pattern. Visual and interactive learning tools are increasingly being used to make abstract physics concepts more concrete for students. Methods like virtual labs, interactive simulations, and real-world challenges help bridge the gap between theoretical principles and tangible experiences. Storytelling and relating physics to everyday phenomena are other effective strategies for increasing student engagement and comprehension.
