Universal Gravitation & Uniform Circular Motion

Front

What is Universal Gravitation?

Back

Universal Gravitation is the law stating 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 gravitational force?

Back

F = G * (m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers of the two masses.

Front

What is centripetal force?

Back

Centripetal force is the force required to keep an object moving in a circular path, directed towards the center of the circle.

Front

What is the formula for centripetal force?

Back

F_c = (m * v^2) / r, where F_c is the centripetal force, m is the mass of the object, v is the velocity, and r is the radius of the circular path.

Front

How does distance affect gravitational force?

Back

The gravitational force decreases as the distance between two masses increases, specifically, it is inversely proportional to the square of the distance.

Front

What happens to gravitational force if the distance is doubled?

Back

If the distance between two objects is doubled, the gravitational force becomes one-fourth of its original value.

Front

What is uniform circular motion?

Back

Uniform circular motion is the motion of an object traveling at a constant speed in a circular path.

Front

What is the direction of velocity in uniform circular motion?

Back

The direction of velocity is tangent to the circular path at any point.

Front

What is the relationship between velocity and centripetal force?

Back

If the velocity of an object in circular motion increases, the centripetal force required to maintain that motion also increases.

Front

What happens to centripetal force if velocity is tripled?

Back

If the velocity is tripled, the centripetal force increases by a factor of nine.