Uniform Circular Motion

Front

What is uniform circular motion?

Back

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

Front

What is the direction of the velocity vector in uniform circular motion?

Back

The velocity vector is always tangent to the circular path and changes direction as the object moves.

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration directed towards the center of the circular path, necessary for an object to maintain circular motion.

Front

How is centripetal acceleration calculated?

Back

Centripetal acceleration (a_c) can be calculated using 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 tangential speed and radius in uniform circular motion?

Back

Tangential speed (v) is directly proportional to the radius (r) and the period (T) of the motion: v = 2πr / T.

Front

What is the formula for calculating the period of an object in uniform circular motion?

Back

The period (T) is the time taken to complete one full revolution and can be calculated using T = 1/f, where f is the frequency.

Front

How do you find the tangential speed of an object in circular motion?

Back

Tangential speed can be found using the formula: v = 2πr / T, where r is the radius and T is the period.

Front

What is the formula for centripetal force?

Back

Centripetal force (F_c) can be calculated using the formula: F_c = m * a_c, where m is the mass of the object and a_c is the centripetal acceleration.

Front

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

Back

If the speed of the object increases, the centripetal acceleration increases as it is proportional to the square of the speed.

Front

What is the effect of increasing the radius on the centripetal acceleration for a constant speed?

Back

Increasing the radius while keeping the speed constant will decrease the centripetal acceleration.