Thursday Lesson

Coached Exam Question.


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Explain how Einstein used a thought experiment to show that Inertial Frames experience time dilation

Highlight verb and important terms

Note: A thought experiment is one done in your head, Inertial frames means moving frames etc and time dilation.........

Start to answer question with:

Explanation:

First sentence, define or mention important terms. Then state Einsteins postulate, about c and the laws of physics. Then draw bounce diagram and conclude.

This video explains the concept

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Discuss factors that influenced your measurement of g with a pendula

Write

"Discussion:........"

First sentence: Key terms, diagram, and equation.
Talk about mass, effects of location on planet.

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"Compare Edison and Westinghouse's Power war"

"Comparison:.............

Table of Property/ Edison/ Wesinghouse/ Comparison

Time and Place/ New york 1900/ New York 1900 / Same time and place
Method / DC / AC / Different methods
Distribution/ generators everywhere/ step up- travel- stepdown/ Westinghouse less expensive
Danger/ DC safer / AC Kills you/ Edison was safer.

Summary statement.

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Describe the magnetic field induced at a point half way down a copper tube when a magnet is dropped down it.

"Description: " + Diagram + Lenz law + Right hand wrap + For example

Remember the field oppose entry and exit.


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Read the Chapter on Induction motors to work out the difference between DC, Universal (AC) , and induction motors