Centripetal acceleration

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration of an object moving in a circular path, directed towards the center of the circle.

Front

What is the formula for centripetal acceleration?

Back

The formula for centripetal acceleration (a_c) is a_c = v^2 / r, where v is the velocity and r is the radius of the circular path.

Front

What direction does the centripetal force act on an object in circular motion?

Back

The centripetal force acts directed toward the center of the circular path.

Front

True or False: An object in circular motion is constantly changing its velocity.

Back

True.

Front

What is the relationship between speed and centripetal acceleration?

Back

As the speed of an object in circular motion increases, the centripetal acceleration increases.

Front

If a horse gallops around a circular arena, what provides the centripetal force?

Back

The centripetal force can be provided by tension in the reins, friction between the horse's hooves and the ground, or gravitational force.

Front

Calculate the centripetal acceleration of a dolphin swimming at 3.2 m/s in a circle with a radius of 30 m.

Back

Centripetal acceleration = 0.341 m/s².

Front

What happens to centripetal acceleration if the radius of the circular path is doubled while keeping speed constant?

Back

The centripetal acceleration is halved.

Front

What is the centripetal acceleration of an object traveling at 2.3 m/s around a circle of diameter 0.6 m?

Back

Centripetal acceleration = 8.81 m/s².

Front

What is the effect of increasing the radius on the centripetal force required for circular motion at constant speed?

Back

Increasing the radius decreases the centripetal force required.