Secondary Catalogue

Physics


Episode 6: Heat and the Human Body

Episode 6: Heat and the Human Body

Shedding Light on Heat

In the final episode, 'Heat and the Human Body', we look at the brilliant systems within our bodies that allow us to maintain a more-or-less constant body temperature regardless of the weather conditions. Sweating, shivering, pumping more blood...Show More
Nuclear Power: Risks and Benefits

Nuclear Power: Risks and Benefits

Nuclear Energy

Nuclear energy generates massive amounts of electricity but also produces highly dangerous radioactive waste. This clip explains waste production in reactors, its treatment and containment and how technology continues to improve safety around...Show More
Nuclear Fission Reactors

Nuclear Fission Reactors

Nuclear Energy

Nuclear reactors contain radioactive fuel that undergoes fission, producing immense heat that drives turbines. Globally, about 10 per cent of electricity is generated this way. This clip details what happens inside a reactor, nuclear fuel and its...Show More
Nuclear Fission

Nuclear Fission

Nuclear Energy

Understanding how nuclear fission produces such vast quantities of energy starts with unimaginably tiny sub-atomic particles. This clip details how fission occurs in radioactive nuclei to release energy. It also explores why the amount of energy...Show More
Nuclear Fusion

Nuclear Fusion

Nuclear Energy

The energy produced by nuclear fusion powers stars like our own Sun. This clip examines nuclear fusion, including what occurs at the sub-atomic level and why the energy released by fusion is vastly greater than in nuclear fission. Einstein’s...Show More
Future-Focused Structures

Future-Focused Structures

Building by Design

Engineering, construction and structural design have come a long way since humans first got here. This clip looks at modern design and construction materials, and provides glimpses of the future, as technology and our understanding of...Show More
Structures and Stress

Structures and Stress

Building by Design

Human structures must be designed to withstand a range of forces. Here, three types of forces causing stress on structures are highlighted – bending, torsion and shear. Each one is defined, and different construction techniques are examined,...Show More
Episode 5: Heat Transfer

Episode 5: Heat Transfer

Shedding Light on Heat

In the final episode, we look at the three ways that heat energy can transfer from one thing to another: conduction, convection, and radiation. A heat source is useless if heat energy can't transfer from the heat source to whatever you want...Show More
Episode 4: The Kelvin Scale

Episode 4: The Kelvin Scale

Shedding Light on Heat

In episode four, 'The Kelvin Scale', we look at the temperature scale that is superior to the Celsius and Fahrenheit scales in many ways. Zero on the Kelvin scale is equal to -273°C. And why is -273°C so special? Because that's the coldest...Show More
Episode 2: Changes of State

Episode 2: Changes of State

Shedding Light on Heat

In 'Changes of State', we look at the differences between solids, liquids, and gases, as well as why things change state when they absorb or lose heat energy. We also look at the strange example of carbon dioxide, which doesn't follow the same...Show More
Episode 3: Thermal Expansion

Episode 3: Thermal Expansion

Shedding Light on Heat

In episode three, we look at thermal expansion—the way that substances expand when heated and contract when cooled—and we explain why it happens. We look at how thermal expansion can be a real nuisance, but also how we can put thermal...Show More
Episode 1: Temperature

Episode 1: Temperature

Shedding Light on Heat

In the first episode we get down to the atomic level to explain how hot things are different to cold things, we describe what a temperature scale actually tells us, and we demonstrate how scientists measure the amount of heat energy that water...Show More
Structures and Balance

Structures and Balance

Building by Design

A number of different design and structural elements are used in constructions – from the most simple to highly complex. This clip explores three common construction elements – columns, beams and cantilevers – defining each and providing...Show More
Structures and Forces

Structures and Forces

Building by Design

Over millennia, human-built structures have become bigger, more complex and quicker to build. A key to this has been understanding how forces behave. This clip looks at two types of opposing forces – tension and compression – defining them...Show More
Newton's Laws of Motion

Newton's Laws of Motion

Collisions

Newton’s three laws of motion are fundamental to many aspects of physics, including collisions. This clip covers the laws, explaining each and looking at how they apply to different examples of collisions. Calculations involving force, mass,...Show More
Energy Transfers

Energy Transfers

Collisions

Understanding the relationship between different variable quantities when objects collide enables us to explain and predict their behaviour. This clip looks at quantities including work, force, distance, mass, velocity and kinetic energy. Worked...Show More
Applications of Scalar and Vector Quantities

Applications of Scalar and Vector Quantities

Collisions

Calculating scalar and vector quantities is vital to understanding collisions. Using tennis court action, this clip examines various quantities including initial and final velocity, displacement, acceleration and time. A number of clearly worked...Show More
Physics of Collisions

Physics of Collisions

Collisions

Collisions occur around us constantly. To know how objects behave when they collide, an understanding of some important concepts of physics is needed. This clip features many examples of collisions, and examines how applying Newton’s Laws of...Show More
Episode 2: Measuring Energy

Episode 2: Measuring Energy

Shedding Light on Energy

In this episode, we look at the 'joule', the unit for energy. We look at how much energy is stored in different foods by comparing apples and oranges (normally a no-no) and we discuss how much energy we need to do certain things including nothing...Show More
Episode 3: Energy Efficiency

Episode 3: Energy Efficiency

Shedding Light on Energy

In this episode, we introduce students to the concept of efficiency, which is a measure of how much useful energy you get out of something compared to the amount of energy that you put into it. We answer a bunch of questions including: How much...Show More
Episode 1: Forms of Energy

Episode 1: Forms of Energy

Shedding Light on Energy

In Forms of Energy we introduce students to the different types of energy that affect their lives daily and describe how energy can change from one form to another. We also explore one of the most important discoveries ever made.
Episode 7: Newton's Second Law

Episode 7: Newton's Second Law

Shedding Light on Motion

In Newton's Second Law, we answer the most important question that has ever been asked: how does a magician pull a table cloth out from under a dinner set? No, seriously, we look at the simple yet powerful equation 'F=ma'. Newton's Second Law...Show More
Episode 8: Newton's Third Law

Episode 8: Newton's Third Law

Shedding Light on Motion

In Newton's Third Law, we look at that most poetic of all Laws: For every action there is an equal and opposite reaction. How does a rocket engine work? Why do guns recoil when fired? How do our muscles work? What propels us when we're swimming?...Show More
Episode 6: Newton's First Law

Episode 6: Newton's First Law

Shedding Light on Motion

In Newton's First Law, presenter Spiro Liacos is 'thrown forward' in a head-on collision, 'thrown backwards' when his tram takes off, and 'thrown to the side' when his car suddely turns a corner. But in fact none of these things actually happen!...Show More
Orbits of Satellites

Orbits of Satellites

Gravity and Motion

Constant unbalanced forces, known as centripetal forces, cause planets, moons and stars in the universe to orbit one another. This clip, aimed at senior level students of physics, examines fundamental aspects of orbital motion of satellites in...Show More