FYYSIKA.EE

Science and art are traditionally represented as two disciplines with completely divergent goals,
methods, and public. It has been claimed that, if rightly addressed, science and art education could
mutually support each other. In this paper I propos…

Research has shown that the objectives for laboratory teaching—just as with other teaching
methods—are often not achieved and that many laboratory sessions are ineffective and yet expensive
in terms of pupil and teacher time, and facilities. There ar…

Sky appears to our students as a vast volume surrounding the Earth. The most striking astronomical
events that they can witness in the sky are lunar phases and eclipses. However, eclipses do not
occur as often as full and new phases of the Moon. This…

A novel method of measuring the coefficients of kinetic and rolling friction is proposed. The method
is simple to implement and reliable. Samples of measurements and calculations are presented.

Using the hodograph method, we present an analytical solution for projectile coplanar motion under
constant drag, parametrised by the velocity angle. We find the locus formed by the apices of the
projectile trajectories, and discuss its implementatio…

Non-standard solving strategies for the compound Atwood machine problem have been proposed. The
present strategy is based on a very simple idea. Taking an Atwood machine and replacing one of its
bodies by another Atwood machine, we have a compound ma…

The frictional force between a physical damped pendulum and the medium is usually assumed to be
proportional to the pendulum velocity. In this work, we investigate how the pendulum motion will be
affected when the drag force is modeled using power-la…

In 1867, just two years after laying the foundations of electromagnetism, J. Clerk Maxwell presented
a fundamental paper on kinetic gas theory, in which he described the evolution of the gas in terms
of certain ‘moments’ of its velocity distribution …

We present a methodology to analyse and interpret a set of telescopic observations of the mutual
orbital phenomena between Jupiter’s Galilean satellites (occultation and eclipses) as a practical
teaching tool for photometry and astrodynamic studies i…

The motion of a particle described by the Langevin equation with constant diffusion coefficient,
time dependent linear force ( ##IMG##
[http://ej.iop.org/images/0143-0807/38/6/065104/ejpaa8d54ieqn1.gif] {$\omega (1+\alpha \cos ({\omega
}_{1}t))x$} )…

The particle in a periodic potential is an important topic in an undergraduate quantum mechanics
curriculum and a stepping stone on the way to more advanced topics, such as courses on interacting
electrons in crystalline solids, and graduate-level re…

Our everyday experience of aged and defective fluorescent tubes or bulbs informs us that they may
flicker and emit a clicking sound while struggling to light up. In this article, the physical
mechanisms controlling the initial illumination of a funct…

The transformation properties of classical electrodynamic variables under charge conjugation C ,
parity reversal P , and time inversion T are considered both for standard and atypical assumptions
for the nature of charge. We have shown that four dist…

Physics associated with the Higgs field potential is rich and interesting and deserves a concise
summary for a broader audience to appreciate the beauty and the challenges of this subject. We
discuss the role of the Higgs potential in particle physic…

The ‘back-to-front’ derivation of the properties of the quantum harmonic oscillator (QHO), starting
with its equally spaced energy levels, is re-examined. A new derivation that exploits the natural
rotational symmetry of the QHO is proposed. The new …

Peer instruction (PI) is an effective interactive approach to teaching and learning that has
principally been used to modify the experience of learning in traditional physics lecture settings.
This article further illustrates how the concept of PI ca…

In this work, we present a coherent sequence of experiments on electromagnetic (EM) induction and
eddy currents, appropriate for university undergraduate students, based on a magnet falling through
a drilled aluminum disk. The sequence, leveraging on…

In order to specify the uncertainty relation for a particle confined in a finite square well
potential we derived the standard deviation of momentum ##IMG##
[http://ej.iop.org/images/0143-0807/38/6/065402/ejpaa8417ieqn1.gif] {${\rm{\Delta }}p$} and t…

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Traditional lab sections in introductory physics courses at Mount Royal University were replaced by
a new style of lab called ‘labatorials’ developed by the Physics Education Development Group at the
University of Calgary. Using labatorials in introd…

The aerodynamic properties of an arrow (A/C/E; Easton) were investigated in an extension of our
previous work, in which the laminar-turbulent transition of the boundary layer on the arrow shaft
was found to take place in the Re number range of 1.2 × …

The Mach–Zehnder interferometer has played an important role both in quantum and classical physics
research over the years. In physics education, it has been used as a didactic tool for quantum
physics teaching, allowing fundamental concepts, such as…

We consider the probabilities of transmission p T and reflection p R of a quantum particle incident
upon potential drops with significant qualitative differences. We look at a smooth potential drop
for which the potential and the derivative of the po…

A mass on the end of a spring can oscillate vertically, horizontally or both at the same time.
Experimental observations are presented and simple explanations are given for the observed motion of
the mass, including the well known case where the freq…

In CO 2 laser-based photoacoustic (PA) systems, N 2 takes part in the generation of the PA signal.
This process causes the nonlinear relation of the photoacoustic signal to the CO 2 concentration.
This phenomenon can be explained simply using a phaso…

We design and construct a device to map the magnetic field generated by a supercurrent in a
rectangular cross section ring of YBa 2 Cu 3 O 7− δ . For the measurements of the magnetic field, we
develop a Gaussmeter based on a commercial Hall effect se…

When solving the linear inviscid shallow water equations with variable depth in one dimension using
finite differences, a tridiagonal system of equations must be solved. Here we present an approach,
which is more efficient than the commonly used nume…

Daven Armoogum is a teaching fellow at the Physics Department in UCL, where he motivates
undergraduate students in their practical work. David Richardson interviewed him to find out how his
passion for astronomy lead him to this position.

Daven Armoogum is a teaching fellow at the Physics Department in UCL, where he motivates
undergraduate students in their practical work. David Richardson interviewed him to find out how his
passion for astronomy lead him to this position.

Bouncing on a trampoline lets the jumper experience the interplay between weightlessness and large
forces on the body, as the motion changes between free fall and large acceleration in contact with
the trampoline bed. In this work, several groups of …