Pendulum Simulation

In class we used this pendulum simulation to determine the relationship between the length of the pendulum and the frequency of the pendulum.

In our experiment, we changed the length of the pendulum (dependent variable) and we measured the time it took for the pendulum to swing or return to start 10 times (dependent variable).

When we looked at our data, we noticed that when we increased the length of the pendulum, the time it took to swing also increased. This means that the frequency of the pendulum decreased.

We can conclude that if we increase the length of the pendulum, the frequency will decrease. In other words, the longer the pendulum is, the slower it moves.

• I don't get it.

• GOT IT!

The variable that is changed in an experiment is the independent variable. What did we change in the experiment?

• The mass of the pendulum

• The angle of the drop

• The amount of friction

• The length of the pendulum

The variable that is measured in an experiment is the dependent variable. What did we measure in the experiment?

• The mass of the pendulum

• The angle of the drop

• The amount of time it took the pendulum to swing 10 times

• The length of the pendulum

In an experiment it is important to only change the dependent variable. What variables did we keep the same? CHOOSE THREE

• The mass of the pendulum

• The angle of the drop

• The amount of friction

• The length of the pendulum

We used the amount of time it took the pendulum to swing 10 times to calculate ________________.

• frequency

• period

• wavelength

• amplitude

After our experiment, we concluded that when we increase the length of the pendulum, the frequency _______________

• increases

• decreases

• stays the same

• goes to zero

One pendulum is 0.50m and the other is 1.00m. Which pendulum will have a lower frequency if both are dropped from a 45° angle?

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One pendulum is 0.90m and the other is 0.60m. Which pendulum will have a lower frequency if both are dropped from a 45° angle?

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One pendulum is 0.70m and the other is 0.50m. Which pendulum will have a lower frequency if both are dropped from a 45° angle?

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One pendulum is 0.50m and the other is 1.00m. Which pendulum will have a HIGHER frequency if both are dropped from a 45° angle?

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