This study explores interest in physics, chemistry and biology among school students in Kerala. It used a sample of 3236 (1659 boys, 1577 girls) students studying in upper primary to higher secondary classes. Three separate versions of scale of interest in science were used to quantify interest in science of upper primary, secondary and higher…

This study focussed on secondary school (11-18 years) pre-service teachers' (n = 73) knowledge of and attitudes towards risks associated with alpha, beta, and gamma radiations. A multi-method approach was used with physics, chemistry, biology, and history graduates undertaking the one-year initial teacher training, Post Graduate Certificate in…

Women and their creativity are underrepresented in science. To date, few women have been awarded the Nobel Prize in science. Eleven female Nobel laureates in physics, chemistry and physiology/medicine between 1901 and 2006 were compared with 37 males who received the Nobel Prize in the same area one year prior and one year after the women. Data…

In response to conventional rocket demands on fuel supplies, electromagnetic launches were developed to give payloads high velocity using a stationary energy source. Several orbital mechanics problems are solved including a simple problem (radial launch with no rotation) and a complex problem involving air resistance and gravity. (DH)

Shows apparent weight increase during upward acceleration using two methods; the scale-mass combination is first, part of an Atwood's machine, and second, it serves as the bob of a pendulum. (MVL)

One of the most fun demonstrations in a freshman mechanics class is the levitation of a ball in a steady air stream even when the jet is directed at an angle. This and other demonstrations are often used to argue for the validity of Bernoulli's principle. As cautioned by some authors, however, it is important to avoid making sweeping statements…

A refinement of an argument due to Maxwell for the equipartition of translational kinetic energy in a mixture of ideal gases with different masses is proposed. The argument is elementary, yet it may work as an illustration of the role of symmetry and independence postulates in kinetic theory. (Contains 1 figure.)

A general and rigorous method to deal with singularities at the origin of a polar coordinate system is presented. Its power derives from a clear distinction between the radial distance and the radial coordinate variable, which makes that all delta functions and their derivatives are automatically generated, and ensures that the Gauss theorem is…

To take a physics course blind students must be assisted using teaching methods and aids adapted to their own perception capabilities. Touchable objects are very important for them because they have huge difficulties to visualize the third spatial dimension. However, appropriate resources and methods for blind students are not yet available. In…

A number of cars drive along a narrow road that does not allow overtaking. Each driver has a certain maximum speed at which he or she will drive if alone on the road. As a result of slower cars ahead, many cars are forced to drive at speeds lower than their maximum ones. The average velocity in the queue offers a non-trivial example of a mean…

Collaboratively observing tutoring is a promising method for observational learning (also referred to as vicarious learning). This method was tested in the Pittsburgh Science of Learning Center's Physics LearnLab, where students were introduced to physics topics by observing videos while problem solving in Andes, a physics tutoring system.…

Many physics teachers would agree that students making real-world connections is a critical aspect of learning physics, but what does this really mean? Merely seeing a real-world application of a physical concept does not necessarily allow students to incorporate the concept into the way they perceive their world. It is not just seeing the…

A new interdisciplinary, introductory science course was offered for the first time during the 2007-2008 school year. The purpose of the course is to introduce students to the idea of working at the intersections of biology, chemistry, and physics and to recognize interconnections between the disciplines. Interdisciplinary laboratories are a key…

In this paper we propose that the unpopularity of science in many industrialised countries is largely due to the gap between the subculture of science, on the one hand, and students' self-image, on the other. We conducted a study based on the self-to-prototype matching theory, testing whether the perceived mismatch between the typical…

Since society and science need interdisciplinary works, the interesting topic of chaos is chosen for interdisciplinary education in physics. The educational programme contains various university-level activities such as computer simulations, chaos experiment and team projects besides ordinary teaching. According to the participants, the programme…