Circular Motion and Gravitation Review

Front

What is the law of universal gravitation?

Back

The law 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

How does distance affect gravitational force?

Back

The gravitational force decreases with the square of the distance between two objects. If the distance is increased by a factor of 5, the force becomes 25 times less.

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration that occurs when an object moves in a circular path, directed towards the center of the circle.

Front

What is the direction of centripetal force?

Back

Centripetal force always acts towards the center of the circular path.

Front

What role does friction play in circular motion?

Back

Friction provides the necessary centripetal force that allows an object to move in a circular path, especially in vehicles turning around curves.

Front

What is the formula for centripetal acceleration?

Back

Centripetal acceleration (a_c) is given by the formula a_c = v^2 / r, where v is the tangential speed and r is the radius of the circular path.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force is directly proportional to the masses of the two objects involved; as either mass increases, the gravitational force increases.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the formula for gravitational force?

Back

The gravitational force (F) between two masses is given by F = G * (m1 * m2) / r^2, where G is the gravitational constant.

Front

What is the significance of the gravitational constant (G)?

Back

The gravitational constant (G) is a proportionality factor used in the law of universal gravitation, allowing the calculation of gravitational force between two masses.