How does length affect the time period of the pendulum?

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Physics Practical:-

Factor: Length of string holding the bob

Research question: - To find out if the length of the string holding the bob affects the gravitational force against the bob, i.e. the time period.        

Hypothesis: - I think that the increase in the length of the string would result in the increase of the time period (time taken for one oscillation), Because The pendulum holding the longer string should take more time because it has a long way from starting to end point, whereas the pendulum with the short string would have a lesser distance to travel the length of the string is directly proportional to the time period, and the time period depends on the length of the string for one oscillation, keeping the mass of the bob constant.         

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And the movement of the pendulum would be due to the gravitational force.

 

Variables:-

Manipulation of variables:-

Independent:-

Length- As the length increases the time period increases too, and as the length decreases the time period also decreases

Dependent:-

Time period- Is affected by the change in length, and is directly proportional to length

Constant:-

Mass of bob- is kept constant as the factor taken is the length

Apparatus:-

  1. String
  2. Bob
  3. Stop watch
  4. Pendulum stand
  5. Rubber split corks to hold string

Method:-

  1. First get all the materials ...

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