Circular Motion: Horizontal Circles

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.

Front

What is centripetal force?

Back

Centripetal force is the net force that acts on an object moving in a circular path, directed towards the center of the circle.

Front

What happens to the direction of an object in circular motion when the force is removed?

Back

The object will move in a straight line tangent to the circle at the point where the force was removed.

Front

How does the speed of an object in circular motion relate to the radius of the circle?

Back

The speed of an object in circular motion is directly related to the radius and the centripetal force acting on it.

Front

What is the formula for centripetal acceleration?

Back

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

Front

What is the relationship between mass and centripetal force?

Back

Centripetal force is directly proportional to the mass of the object moving in a circle.

Front

If the radius of a circular path is doubled, what happens to the centripetal force if speed remains constant?

Back

The centripetal force is cut in one-half.

Front

What is the effect of increasing the speed of an object in circular motion on the tension in the string?

Back

Increasing the speed increases the tension in the string, which can lead to the string breaking if the tension exceeds its limit.

Front

What direction does the net force act when an object moves in a circular path?

Back

The net force always acts towards the center of the circular path.

Front

What is the formula for calculating the maximum speed before a string breaks in circular motion?

Back

Maximum speed (v) = sqrt(T/m), where T is the maximum tension the string can handle and m is the mass of the object.