Understanding Foucault Pendulums and Earth's Rotation

What is unique about the Foucault pendulum at the University of Puget Sound compared to a clock pendulum?

• It swings in a fixed direction.

• It is smaller than a clock pendulum.

• It is powered by electricity.

• It can swing in any direction.

What principle explains the pendulum's continuous swinging motion?

• Law of Inertia

• Law of Conservation of Energy

• Law of Gravity

• Law of Thermodynamics

How does the duration of a 'pendulum day' change as you move from the poles to the equator?

• It remains the same.

• It becomes unpredictable.

• It increases.

• It decreases.

What happens to a Foucault pendulum at the equator?

• It does not rotate relative to the Earth.

• It completes a circle every 24 hours.

• It stops swinging.

• It rotates counterclockwise.

Who was the physicist that first used a pendulum to prove Earth's rotation?

• Albert Einstein

• Leon Foucault

• Isaac Newton

• Galileo Galilei

What is the purpose of the electromagnet in modern Foucault pendulum displays?

• To adjust the pendulum's length.

• To measure the Earth's rotation speed.

• To keep the pendulum swinging indefinitely.

• To change the pendulum's direction.

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