Experimental Design pendulum My Grandfather clock is running fast.

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Presentation transcript:

Experimental Design pendulum My Grandfather clock is running fast. How do I adjust the timing? pendulum

Variables in a Pendulum SPEED OF SWING – PERIOD OF PENDULUM

Constants in a pendulum

SPEED OF SWING (SECONDS PER SWING) MASS OF BOB OR WEIGHT ANGLE OF RELEASE LENGTH OF STRING OR WIRE SPEED OF SWING (SECONDS PER SWING) PERIOD

THE HYPOTHESIS CHANGE ONLY ONE INDEPENDENT VARIABLE, WHICH SHALL IT BE? a, m or L IF ___(independent variable)_____ IS __(describe change)___ IF THE IS INCREASED THEN __(dependent variable)___ will __(describe change)__ THEN THE OF THE PENDULUM WILL INCREASE

THE EXPERIMENT Levels of the IV 2m 1.5m 1.0m 0.5m Number of Trials IV: Length of String Levels of the IV 2m 1.5m 1.0m 0.5m Number of Trials DV: Period of Pendulum Constants: 1. 2. 4. 3.

Determine the Period for each of SIMULATION CLICK TO LAUNCH Determine the Period for each of the four Levels of the Independent Variable

DATA TABLE Length (m) Period of Pendulum Trial 1 Trial 2 Trial 3 Trial 1 Trial 2 Trial 3 Trial 4 Average Class Average 0.5 1.0 1.5 2.0

Graphing the Data (Insert the data and Label the graph) Input the data into Logger Pro – Length of String – Class Average of Period

COMPLETED GRAPH

CONCLUSIONS 1. What was the purpose of the experiment? 2. What were the major findings? 3. Was the hypothesis supported by the data? What possible explanations can you offer for the findings? What recommendations do you have for further study and for improving the experiment?