Unbalanced Forces Review

Front

What is the term for the number of rotations or revolutions completed in a certain time?

Back

Rotational speed.

Front

How is centripetal force measured?

Back

In newtons (N).

Front

What is one newton equivalent to?

Back

1 kg m/s².

Front

Which factor does NOT affect the force of friction when an object is moving through a fluid?

Back

Mass of the object.

Front

What does the symbol omega (ω) represent in physics?

Back

Rotational speed.

Front

Define centripetal acceleration.

Back

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

Front

What is the formula for calculating centripetal force?

Back

F_c = (mv²)/r, where m is mass, v is linear speed, and r is radius.

Front

Explain the relationship between linear speed and rotational speed.

Back

Linear speed (v) is related to rotational speed (ω) by the formula v = rω, where r is the radius.

Front

What is the effect of increasing the radius on centripetal force?

Back

Increasing the radius decreases the centripetal force required for a given speed.

Front

What is the role of friction in circular motion?

Back

Friction provides the necessary centripetal force to keep an object moving in a circular path.