Circular motion

Front

What is the direction of acceleration when moving in a horizontal circular path?

Back

Towards the center of the circle.

Front

The velocity of an object in circular motion is always _____ to the line of a circle.

Back

Tangent.

Front

What is the direction of the net force on a car going around a curve?

Back

Toward the curve's center.

Front

Centripetal acceleration acts towards the ___________ of the circular motion.

Back

Centre.

Front

An object which moves in uniform circular motion must move with?

Back

Constant speed.

Front

Define centripetal force.

Back

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

Front

What is the formula for centripetal acceleration?

Back

a_c = v^2 / r, where v is the linear velocity and r is the radius of the circular path.

Front

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

Back

The centripetal force must increase to maintain circular motion.

Front

What is the relationship between tangential speed and radius in circular motion?

Back

Tangential speed is directly proportional to the radius for a given angular speed.

Front

What is angular velocity?

Back

The rate of change of angular displacement, usually measured in radians per second.