Published in Physics Education
Granular flows appear frequently in the natural world and in civil engineering applications. These flows can exhibit features which are surprising and counter-intuitive and are often used to test the limits of the classical continuum approximation for modelling of fluid flows. An important sub-class of the granular flows are the gravity-driven gran...
Published in Physics Education
In this article we present a simple technique for determination of the Young modulus of the material of a metallic ruler using it as a cantilever. This method employs with a slide potentiometer and a digital multimeter. The linear region of potentiometer resistance which is calibrated in terms of length has been used to record the load vs. resistan...
Published in Physics Education
We present an experiment designed to study standing waves in a tube with one closed end. Two smartphones are used, one to emit a sound signal with a chosen frequency and another equipped with a microphone to detect the sound pressure level inside the tube. Due to the finite diameter of the tube, the standing wave node (or antinode) appears slightly...
Published in Physics Education
Published in Physics Education
We present some measures with the Foucault’s pendulum located in the building housing the Physics and Astronomy Department of our University. We shot a movie of the pendulum motion over 1 hour, whose frames have been later analysed to extract information about the trajectory. Thanks to this method, the rotation of the oscillation plane has been rec...
Published in Physics Education
Experimental results are presented concerning the motion of a ball that bounces up an incline a few times then bounces back down again. The number of bounces up the incline is typically small since the speed of the ball in a direction parallel to the incline decreases rapidly, not only during each bounce but also while the ball is in the air. The b...
Published in Physics Education
In this work, an alternative Experimental Didactic Kit for teaching resistors, capacitors and RC timing circuits was developed, using the Arduino platform technology, which is composed of a microcontroller and peripherals, due to the easy access to available teaching materials, enabling the reproduction of the prototype in the future by people with...
Published in Physics Education
Diffraction refers to a kind of optical phenomena which occurs when light approaches an element (object or aperture) whose features are in the range of the illuminating wavelength (small apertures, sharp edges). It can be explained by means of the undulatory nature of light or also geometrically by using simple ray optics. Diffraction phenomena are...
Published in Physics Education
This work is about a physical model of the photoelectric effect. The model is cost-effective and may be used to generate data qualitatively like that of the photoelectric effect. Features of the model include frequency dependence and the notion of a bound particle overcoming a barrier.
Published in Physics Education
A driven RLC series circuit is constructed by connecting a sine-wave generator to a coil and a capacitor. A multimeter is used to measure the circuit parameters and is then connected across the capacitor to measure its rms voltage. As a result, a resonance curve is mapped out that matches theory with no free parameters.
