Circular Motion

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What is uniform circular motion?

Uniform motion is experienced by any object that revolves around a central axis.

How does centripetal acceleration affect motion?

Centripetal acceleration continuously changes direction of velocity towards the center of the curve.

How do you define centripetal force?

The net inward force acting on an object moving in a circular path, directing it toward the center of curvature to maintain its curved trajectory

What is Newton's Law of Universal Gravitation?

Every particle in the universe attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

How does distance affect the force of gravity?

The force of gravity between two masses weakens quickly the farther apart they are.

What are Kepler's Laws of Planetary Motion?

1. Planets travel in elliptical orbits.

2. Planets travel faster when they are closer to the sun.

What is torque?

A measure of the ability of a force to cause a rotation around an axis.

Torque causes rotation

What variables influence torque?

Magnitude and distance of force