Circular and Gravitation: includes vertical circles

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration experienced by an object moving in a circular path, directed towards the center of the circle, due to the change in direction of the object's velocity.

Front

Why do objects in circular motion experience centripetal acceleration?

Back

Objects in circular motion experience centripetal acceleration because they are constantly changing direction, which means their velocity is changing, and this net change is directed inward.

Front

What is the relationship between gravitational forces exerted by two objects?

Back

According to Newton's third law, the gravitational force exerted by one object on another is equal in magnitude and opposite in direction to the gravitational force exerted by the second object on the first.

Front

What is uniform circular motion?

Back

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

Front

What is the net force acting on an object in uniform circular motion?

Back

The net force acting on an object in uniform circular motion is directed toward the center of the circular path.

Front

What happens to gravitational force if the distance between two masses is quadrupled?

Back

If the distance between two masses is quadrupled, the gravitational force between them decreases by a factor of 1/16.

Front

What is the formula for gravitational force between two masses?

Back

Front

What is the significance of the radius in circular motion?

Back

The radius of a circular path affects the centripetal acceleration; a smaller radius results in greater centripetal acceleration for the same speed.

Front

What forces act on an object at the top of a vertical circle?

Back

At the top of a vertical circle, the forces acting on the object include gravitational force acting downward and tension in the string acting downward.

Front

What is the formula for the acceleration of an object at the top of a vertical circle?

Back