212 results found for physics

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00:07:00

Nuclear Power in the United States

by Kelly Schwirian
Nuclear Power in the United States
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 11 years ago | 995 views
Rating:

Kelly Schwirian presents on nuclear power in the United States.

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00:07:00

Diffraction and Fourier Transforms

by Tega Edo
Diffraction and Fourier Transforms
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1306 views
Rating:

How we are affected by the very widespread manifesations of diffraction.

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00:10:00

Why can’t we see atoms?

by John Rodenburg
Why can’t we see atoms?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1258 views
Rating:

John talks about diffraction and the limits it puts on our ability to image atoms. Can we make an electron-microscope without lenses?

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00:08:00

Centre of mass

by Joe Wolfe
Centre of mass
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1170 views
Rating:

In finite objects, the total external force equals the total mass times the acceleration of a point called the centre of mass.

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00:06:00

Improving your Memory

by Matthew Bryan
Improving your Memory
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 869 views
Rating:

Looking at how hard disk drives can be improvedn

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00:10:00

Energy and power

by Joe Wolfe
Energy and power
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 1022 views
Rating:

The total work done on an object equals the increase in its kinetic energy. For conservative forces, we can define potential energy.

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01:28:00

The Physics of Angels and Demons

by Harrison Prosper
The Physics of Angels and Demons
for 14-19 and upwards,
Lectures | 14-19 and upwards | 11 years ago | 944 views
Rating:

Professor Harrison Prosper of FSU Physics Department looks at the science behind the recently released movie 'Angels and Demons', starring Tom Hanks and based upon a Dan Brown novel. Prof. Prosper discusses topics such as antimatter, dark matter, dar....

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00:06:00

Centripetal force – how do we measure it?

by Colin Byfleet
Centripetal force – how do we measure it?
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 12 years ago | 7723 views
Rating:

A short video showing a simple classroom method of checking the way in which this force is related to mass, speed and radius.

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00:14:00

Going round in circles – how do we do it?

by Colin Byfleet
Going round in circles – how do we do it?
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 12 years ago | 1348 views
Rating:

A presentation showing both the ideas about centripetal force and a simple classroom method of checking the way in which this force is related to mass, speed and radius.

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00:05:00

Measuring the speed of pulses

by Colin Byfleet
Measuring the speed of pulses
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 12 years ago | 1755 views
Rating:

A short clip showing the experimental measurement of the speed of electrical pulses in a cable - a large fraction of the speed of light.

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00:09:00

Measuring the speed of sound

by Colin Byfleet
Measuring the speed of sound
for 14-19 and upwards,
Teaching modules | 14-19 and upwards | 12 years ago | 11062 views
Rating:

A presentation showing how to measure the speed of sound over a short distance on a laboratory table.

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00:04:00

Measuring the speed of sound – experimental details

by Colin Byfleet
Measuring the speed of sound – experimental details
for 11-14 and upwards,
Teaching modules | 11-14 and upwards | 12 years ago | 8079 views
Rating:

A short clip showing the measurement of the speed of sound over short distances.

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00:10:00

Weight and contact forces

by Joe Wolfe
Weight and contact forces
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1342 views
Rating:

Carefully distinguish mass and weight. Hooke's law quantifies deformation. Contact forces have normal and frictional components.

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00:55:00

The Quantum World abserver by Electron Waves

by Akira Tonomura
The Quantum World abserver by Electron Waves
for 18-22 and upwards,
Lectures | 18-22 and upwards | 12 years ago | 1409 views
Rating:

Dr. Tonomura is a world renowned pioneer and authority in the field of electron holography, for which he has received many national and international recognitions. He is recognized for his contributions in the development of electron holography, the ....

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00:05:00

Light Beam

by Jonathan Hare
Light Beam
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1192 views
Rating:

Light is reflected off a flexible shiny surface fixed to the end of a plastic tube. When one speaks into the tubes sound vibrations pass down the tube and make the surface vibrate. The reflected light is therefore sent off from the surface in a con....

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00:07:00

Potato Battery

by Jonathan Hare
Potato Battery
for 11-14 and upwards,
Lectures | 11-14 and upwards | 12 years ago | 1914 views
Rating:

When two different types of conductors are pushed into a potato chemical reactions take place charging them up - we have a simple electrochemical cell. A potato, zinc screw and carbon rod produce about 1V. We experiment joining a few of these cells u....

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00:04:00

Shake-a-Gen

by Jonathan Hare
Shake-a-Gen
for 11-14 and upwards,
Lectures | 11-14 and upwards | 12 years ago | 1237 views
Rating:

This is a simple yet effective demonstration of electricity generation. 500 turns of wire are wound onto a 35mm film can and the two ends are attached to an LED light. A strong magnet is placed in the can and the lid fixed back in place. The generato....

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00:04:00

Seawater Battery

by Jonathan Hare
Seawater Battery
for 11-14 and upwards,
Lectures | 11-14 and upwards | 12 years ago | 2260 views
Rating:

When two different metals are placed in a salt solution (an electrolyte) the chemistry produces a voltage. This is called a cell. By wiring up a number of these cells we can make a battery and use it to power electrical circuits.

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00:03:00

Three Windmills

by Jonathan Hare
Three Windmills
for 11-14 and upwards,
Lectures | 11-14 and upwards | 12 years ago | 1161 views
Rating:

Converting wind power into electricity seems like an ideal way of helping to solve our energy problems. However, the power generated by a windmill is dependent on the wind speed. If the wind drops to half its speed there is as little as an 1/8th of t....

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00:02:00

Parabolic Light Collectors

by Jonathan Hare
Parabolic Light Collectors
for 11-14 and upwards,
Lectures | 11-14 and upwards | 12 years ago | 5553 views
Rating:

Parabolic surfaces can be used to concentrate energy for example to focus sunlight to heat things. Using an old World War II spot light mirror we demonstrate how easy it it is to concentrate enough energy to cause combustion. Finally, we show how to ....

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00:04:00

Temperature and States of Matter

by John Murrell
Temperature and States of Matter
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 7884 views
Rating:

A short video explaining how to measure temperature.

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00:10:00

Measuring Temperature

by John Murrell
Measuring Temperature
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1206 views
Rating:

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00:10:00

Temperature Scales

by John Murrell
Temperature Scales
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 1115 views
Rating:

John Murrell explains scales and colour changes with temperature, boiling and melting,

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00:01:00

Volume Changes with Temperature

by John Murrell
Volume Changes with Temperature
for 14-19 and upwards,
Lectures | 14-19 and upwards | 12 years ago | 881 views
Rating:

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