Circular Motion Review

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

How is centripetal force calculated?

Back

Centripetal force (Fc) can be calculated using the formula: Fc = (mv^2)/r, where m is mass, v is tangential speed, and r is the radius of the circular path.

Front

What happens to centripetal force if the radius of the circular path increases while mass and speed remain constant?

Back

If the radius increases, the centripetal force decreases.

Front

Define tangential speed.

Back

Tangential speed is the linear speed of an object moving along a circular path, measured at a point tangent to the circle.

Front

What is the relationship between tangential speed and rotational speed?

Back

As tangential speed increases, rotational speed also increases, assuming the radius remains constant.

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.

Front

How is centripetal acceleration calculated?

Back

Centripetal acceleration (ac) can be calculated using the formula: ac = v^2/r, where v is tangential speed and r is the radius.

Front

What is the effect of friction on circular motion?

Back

Friction provides the necessary centripetal force to keep an object moving in a circular path; without it, the object will move in a straight line.

Front

What happens to the path of an object in circular motion if it loses all friction?

Back

If an object in circular motion loses all friction, it will continue in a straight line tangent to the circular path at the point of loss.

Front

What is the period of rotation?

Back

The period of rotation is the time taken for one complete revolution around a circular path.