Experimental Scenario Donna has observed that her father can control the speed of their grandfather clock by adjusting the

height of the weight on the end of the pendulum. Donna thinks that the pendulum will move faster

when the weight is lowered, and wants to test her idea. Donna gets a stopwatch and measures the

time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position.

Donna begins to move the pendulum up by 1 cm and continues to measure the time for twenty swings

of the pendulum. Donna records her data

SCI 1.4 Investigation Plan

1) Provide a brief description of the methods that are being used to run the experiment