Lab Flashcard 14 Centripetal Force

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 centripetal acceleration?

Back

Centripetal acceleration (a_c) is given by the formula: a_c = v²/r, where v is the velocity and r is the radius of the circular path.

Front

How do you calculate the velocity of an object in circular motion?

Back

Velocity (v) can be calculated using the formula: v = √(a_c * r), where a_c is the centripetal acceleration and r is the radius.

Front

What is the relationship between frequency and period?

Back

Frequency (f) is the reciprocal of the period (T): f = 1/T. The period is the time taken for one complete cycle.

Front

If a bike wheel makes 33 rotations in 11 seconds, what is its frequency?

Back

Frequency = Number of rotations / Time = 33 rotations / 11 s = 3.0 Hz.

Front

What is the period of an object in circular motion?

Back

The period (T) is the time taken to complete one full rotation or cycle.

Front

How do you determine the direction of velocity in circular motion?

Back

The direction of velocity is tangent to the circular path at any point and changes continuously as the object moves.

Front

What is the formula for calculating centripetal force?

Back

Centripetal force (F_c) is 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 centripetal force if the radius of the circular path increases?

Back

If the radius increases while keeping the speed constant, the centripetal force decreases.

Front

What is the unit of centripetal acceleration?

Back

The unit of centripetal acceleration is meters per second squared (m/s²).