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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

Sagot :

Answer:

Reduce the mass and measure the speed of pendulum.

Explanation:

First measure the swings of the pendulum at its original weight. After that some weight is removed from the pendulum and again measure the number of swing of pendulum at specific time period. We have to reduce mass of pendulum and then measure the number of swings. In this way, this experiment moves forward and we can find out the impact of mass on the speed of pendulum.

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