Category Archives: Unit 3

Electric fields podcast

Download the notes. Download the video.

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Electromagnetism quiz

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10 ways to see the electric field

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Professor Dave explains Special Relativity

Special Relativity Part 1: From Galileo to Einstein Special Relativity Part 2: Time Dilation and the Twin Paradox Special Relativity Part 3: Length Contraction Special Relativity Part 4: Mass-Energy Equivalence or E = mc² General Relativity: The Curvature of Spacetime

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Physics Girl – Special Relativity and the Twin Paradox

How can just two rules of Einstein’s 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time?

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Veritasium – Can You Go the Speed of Light?

Einstein’s classic thought experiment involves sitting on a train travelling at the speed of light. If you hold a mirror in front of your face, will you see your reflection in a mirror? How could light from your face reach … Continue reading

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Vsauce – Would Headlights Work at Light Speed?

If you were driving at the speed of light and turned on your headlights, what would happen?  

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Exam formula sheet

Here is a copy of the exam formula sheet with rearrangements of equations. It’s a very long list; it would be useful to make sure that you have the rearrangements (particularly kinematics and gravity) on your own summary sheet.

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Photonicinduction – 10 second kettle

Photonicinduction and Polar again take control of the power supply but this time test an Electric Kettle to it’s limits and beyond, the speed and power is surprising.

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The strongest magnet in the world

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