The life story of Jules Antoine Lissajous, the 19th century French physicist who did pioneering work on the properties of sound waves. Lissajous also created the first harmonograph, which allowed vibration patterns to be recorded on paper.

This is the Chapter One Challenge for the textbook Active Physics.

Discusses the feasibility of alternative energy sources, specifically Nuclear Fission and Hydroelectricity. Describes each technique, its cost and environmental impact.

A discussion, with sample equations, of the travel of a cart down an inclined plane. Includes discussion of relevant topics: potential energy, coefficient of friction, etc.

We owe a lot to artificial light, because it enables us to see in places that light normally would not reach. However, it is also hurting us in the form of light pollution, which jeopardizes our health, our planet, and our progress as a species.

A listing of Edwin Hubble's astrophysics discoveries plus other discoveries of the 20th century. Plus, a discussion of end-of-the-universe theories.

The speed of the ball bearing accelerated when it moved through the honey, because of the gap between the ball and the edge of the cylinder which let the honey through. The speed changes when it hits an air bubble then it returns to its normal accelerating speed.

This essay provides a detailed look at Newton's life. It explains all of his major works, and the impact they had on modern day science.

Biography of Joseph Henry.

A short biography of Lord Ernest Rutherford, the New Zealand physicist who split the atom and proved that each atom had different components.

As the name implies, a black hole cannot emit or reflect any light; making them practically invisible. If enough mass is concentrated into a small enough region, the curvature of space-time becomes so harsh that nothing can continue to orbit stably; not even light.

Essay consists of the Bouncing Balls energy transfer experiment.

Using physics principles, the acceleration of a moving object is calculated.

Essay discusses why cell phones do not work in a subway.

The history and consequences of the Tacoma Bridge Collapse.

Focuses on debating the pros and cons of nuclear energy. Adopts a more biased approach on the issue. Also briefly investigates several other alternative resources and describes issues that are associated with them.

Physicist Albert Einstein came up with an equation E=m.c2 to help explain the relationship between energy and mass. The simplest interpretation suggests that matter can be converted into the energy and energy into matter. The theory helps explain the curious begging of the universe when an enormous of energy became matter.

Provides the details of an experiment examining if objects of the same weight and size, float at different levels in liquids of different densities. Discusses Archimedes theory of buoyancy.

A consideration of a small confusion about the different aspects of dimensions that is really perceived by different persons being the same or different. Why it is so? Do we really follow the exact path towards the truth? Some understanding of physics is needed to understand.

Introduced in 1905, Albert Einstein's Special Theory of Relativity is based on two ideas: the law of physics is constant for anyone moving at a constant speed, and the speed of light is constant for anyone, in any frame of reference. If the speed of light is constant, then time and space must be relative. The consequences of this constancy are time dilation, length contraction, mass change, and the equivalence between mass and time. Results of experiments throughout the twentieth century have served to support the validity of this theory.

Provides a detailed overview of electricity. Describes how to find the force caused by a magnetic field on a single charge carrier moving in a wire.

Defines electromagnetism and its strengths. Provides details of an experiment attempting to find out how the strength of an electromagnet is affected by the number of turns, voltage supplied or current given. Gives the results of the experiment.

Through researching, discussing, evaluating and describing the different electrical components within a full wave voltage doubler it was found the application of these components can be arranged within a circuit in such a way as to multiply the source output.

A scientific experiment in which the author attempts to prove that a filament bulb obeys Ohm's Law.

Provides a full analysis of how force and motion work. Discusses speed and velocity. Examines Newton's three laws of motion.

Descriptions of motion and the law of falling bodies described by Galileo and Aristotle.

Boyle's law: pressure of a gas is inversely proportional to its volume when temperature is constant. For example if the pressure slowly rises in a container, the volume will slowly drop. P = 1/V. Charles's Law: The volume of a gas is directly proportional to its temperature when pressure is constant. For example if bread is heated up its volume will increase. V = T

My essay is about Global Positioning Systems (GPS).

Essay consists of a discussion regarding the history of rockets.

Electric circuits are designed to transfer just sufficient energy to operate the components in the circuit. The potential difference across the components (and the current through them), are carefully controlled by the resistance in each part of the circuit. The relationship between potential difference, current and resistance was discovered by a German physicist, George Ohm, in 1826.

An official GCSE style essay that uses the correct format for GCSE physics essays and covers all aspects of the pre-experiment notes (aim, background information, fair test, safety, and prediction), the experiment itself (diagram, method, and results), and the post-experiment notes (analysis and evaluation).

An experiment into how the length of a piece of wire affects its resistance.

This is a formal lab report of the internal resistance of a dry cell.

Details an experiment investigating the effect of length on the resistance of a wire. Provides a scientific explanation for resistance in a wire. Gives the results of the experiments and suggests methods to extend it.

Essay discusses the life and accomplsihments of Issac Newton.

Thid essay is about the famous scientist named Issac Newton.

A biography of the physicist James Chadwick (1891-1947), the discoverer of the neutron and winner of the Nobel Prize in 1935.

Popularly known as global warming, the theory of climate change has aroused intense controversy regarding the extent to which human activities affect global temperatures and weather patterns. James Hansen, a researcher from NASA announced with confidence that global warming had arrived.

An essay that explains a physics experiment of how to find out how launch angle of an object affects time of flight.

An upcoming display technology called Light Emmitting Polymers. Explains its development and describes the research into the technology.

Essay provides a discussion of the life and accomplishments of John A. Wheeler.

A small-scale house is constructed, decorated, and lighted with circuits, two batteries, six light bulbs, a set of wires, and other materials. Lighting the house required a certain number of lights within both a parallel circuit and a series circuit.

Essay discusses the subject of magnetism as well as how it is useful to society.

Explores the use of Magnetic Levitation trains as transportation devices. Details the history of the devices and explains how they differ from other trains currently in use.

Microsoft's Minesweeper is a game of strategy that is a mind-boggling puzzle to a beginner, but it can teach the player the process of problem solving and logical deduction. In addition it is a challenging game that is complex and difficult to learn, and therefore it develops critical thinking skills.

Essay describes the physics involved in nanotechnology and many of its applicaions.

An essay that explains how Newton's three laws are used to explain car accidents.

Sir Isaac Newton was the first to study the causes of acceleration. His rules and laws are very easy to follow; one just has to sit and think it through and then apply what Newton has taught. His laws are used in every day life and used by other scientists and theorists to help figure out the problems they are faced with.

Provides a biography of Niels Bohr, Danish Physicist. Describes his early life, education and theories of quantum mechanics. Discusses his friendly rivalry with Einstein.

The following are notes about Matter.