Inspired Song

Aim: To investigate the relationship between the term taken for the pendulum to finish 20 oscillati Problem statement: How does the length of the draw and quarter affect the period of oscillation? Inference: The time taken for 20 oscialltion of the pendulum depends on the length of the string. Hypothesis: The shorter the length of the thread, the shorter the time taken to complete 20 oscilattion. Variables: Manipulated variable: Length of the thread, l Responding variable : Time taken for 20 oscillation, T T Fixed Variable : Mass of bob, go of release (45 (45?) weapon and Materials: Retort stand, G-clamp, Protractor, Stopwatch, 100cm of thread, scaissors of thread, scissors

Procedure 1. A pendulum was tied to a thread. 2. It is indeed tied to a give back stand, with a G-clamp to make the coming back stand stable. 3. The pendulum is adjusted so that the length of the thread from the retort stand to the pen 4.



The pendulum was tilted to an angle at angle at 45? 5. Once released, time taken was taken for 20 oscillation. 6. Step 4 and 5 was repeated for the thread length of 90, 80, 70, 60, 50 and 40.

l (cm)
100 90 80 70 60 50 40

T? 42.23 41.08 38.21 36.44 33.24 30.24 27.56

T? 42.05 41.01 38.34 36.36 33.19 30.18 27.34

norm 42.14 41.045 38.275 36.4 33.215 30.21 27.45

Angle 45? 45? 45? 45? 45? 45? 45?

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