Determination of g (AQA A-Level Physics): Quizzes

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Determination of g
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What is the purpose of the electromagnet in this experiment?

To hold the steel ball before release

What is the initial height hh between the release point and the lower light gate?

0.500 m

By what interval is the height hh decreased during the experiment?

0.050 m

What is the minimum height hh used in this experiment?

0.250 m

How many times in total is each measurement taken for a given height?

Three times

What quantity is plotted on the y-axis of the graph?

2ht\frac{2h}{t}

How is the value of gg determined from the graph?

From the gradient

What is the value of the initial velocity uu in this experiment?

u=0u = 0

What safety measure is used to protect the ball after it falls?

A soft pad or tray

Why is a steel ball bearing used in this experiment?

It is dense to reduce air resistance

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