Paper 1 Practicals Flashcards

1
Q

Describe the force extension practical

A
  • set up a clamp stand with a clamp
  • suspend spring from clamp
  • use a second clamp and boss to fix a meter ruler alongside the spring
  • (eye level with bottom of the spring) measure the initial displacement of the spring
  • attatch mass holder to bottom of the spring
  • eye level with bottom of the spring, measure new displacement , and calculate the spring extention (new-initial displacement )
  • repeat with different mass hangers , record extentions
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2
Q

What are possible sources of inaccuracy ?

A
  • not clamping the ruler verticle
  • paralax error
  • holding the ruler instead of fixing
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3
Q

How would you increase the accuracy ?

A

when taking readings , make sure you are eye leve with the ruler

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4
Q

How would you increase the accuracy ?

A

when taking readings , make sure you are eye leve with the ruler

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5
Q

Why are more readings taken?

A

to identify any anomolous results
to reduce the effect of random error

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6
Q

How could you reduce the effect of random errors?

A
  • repeat some measurments
  • ignore anomalities , calculate the mean/average
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