Physics: Post your doubts here!

kiara15

kiara15

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can you guide me how to calculate absolute errors in gradient and y intercept? alsoow to how to draw worst fit line in graph? plzz
 
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anishniroula

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shreeya95 said:
mark scheme says that This mark is not scored for Rbeing proportional to l^2. so how do we write the conclusion that confirms the relationship between R and l??
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yeah! mark scheme says to construct this equation and says nothing about statement. so i think we should construct the eqn and state the relationship. This is all we can do.
 
geminisign

geminisign

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For practical paper number 3 (AS Level) when they ask you "Explain whether your results support the suggested relationship."

The answer is "Valid conclusion based on the calculated values of k. Candidate must testagainst a stated criterion. "

What is a stated criterion? Can I have a few examples? Thanks!
 
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bomberblitz

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Oliveme said:
We subtract the two to get the resultant force. Frictional force opposes the driving force and so the total force becomes 2N.
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The driving force is a result of the gravitational force of the mass(2kg), connected to the box by the string, thus it should be 2g, the resultant force (friction taken into account) should be (2g-6)N shouldn't it... the weight of the boxed being pulled shouldn't be taken into account as the whole movement is horizontal.
 
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hela

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