Centripetal Force Flashcard

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 is the formula for calculating centripetal force?

Back

The formula is F_c = (m * v^2) / r, where F_c is centripetal force, m is mass, v is tangential speed, and r is the radius of the circular path.

Front

Calculate the centripetal force required for a 5 kg ball moving at 4 m/s in a circle with a radius of 2 m.

Back

40 N

Front

True or False: An object moving at a constant speed in a circular motion is not accelerating.

Back

False

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration that occurs in circular motion, directed towards the center of the circle, calculated as a_c = v^2 / r.

Front

If a car is 48.2 m from the center of a circular track and has a centripetal acceleration of 8.05 m/s², what is its tangential speed?

Back

19.7 m/s

Front

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

Back

The centripetal force required for circular motion increases with the square of the speed and decreases with an increase in radius.

Front

Calculate the centripetal force required to keep three rocks with a combined mass of 0.75 kg spinning at a speed of 20 m/s with a radius of 0.5 m.

Back

600 N

Front

True or False: When an object is in circular motion, it is constantly changing its velocity.

Back

True

Front

What is the effect of increasing mass on centripetal force?

Back

Increasing the mass of an object increases the centripetal force required to maintain circular motion.