Circular Motion and Law of Universal Gravitation

Front

What is Circular Motion?

Back

Circular motion is the motion of an object that revolves around a fixed point or axis in a circular path. It can be uniform (constant speed) or non-uniform (changing speed).

Front

What is Centripetal Acceleration?

Back

Front

What is the Law of Universal Gravitation?

Back

The Law of Universal Gravitation states that every point mass attracts every other point mass in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is the formula for Centripetal Force?

Back

Front

What is the relationship between velocity and acceleration in circular motion?

Back

In circular motion, even if the speed is constant, the direction of the velocity vector changes, resulting in centripetal acceleration.

Front

What does it mean for an object to be in uniform circular motion?

Back

An object is in uniform circular motion when it moves in a circular path at a constant speed, meaning its velocity is constant in magnitude but changing in direction.

Front

How does the radius of a circle affect centripetal acceleration?

Back

Centripetal acceleration is inversely proportional to the radius; as the radius increases, the centripetal acceleration decreases for a constant speed.

Front

What is the direction of the velocity vector in circular motion?

Back

The velocity vector in circular motion is always tangent to the circle at any point along the path.

Front

What happens to centripetal acceleration if the speed of the object increases?

Back

If the speed of the object increases while moving in a circular path, the centripetal acceleration increases, as it is proportional to the square of the speed.

Front

What is the effect of mass on centripetal force?

Back

Centripetal force is directly proportional to the mass of the object; increasing the mass increases the required centripetal force to maintain circular motion.