Unit 5 Review: Torque and Rotational Dynamics

These flashcards cover key concepts from Unit 5 of AP Physics 1, specifically focusing on Torque and Rotational Dynamics, including Rotational Kinematics.

What is the equation for linear displacement?

The equation is change in position, or delta x, equals position final minus position initial.

What is angular displacement in terms of angular position?

Angular displacement (delta theta) equals angular position final minus angular position initial.

What are the three units for angular displacement?

The three units for angular displacement are degrees, radians, and revolutions.

How do you calculate average angular velocity?

change in angular position over change in time.

What is the typical unit for angular velocity in physics?

radians per second.

How do you convert radians per second to revolutions per minute?

Multiply radians per second by 60 seconds per minute and divide by 2 pi radians.

What is the equation for average angular acceleration?

change in angular velocity over change in time.

What does a rigid object mean in rotational kinematics?

A rigid object maintains a constant shape as it rotates.

What does UfishyM stand for in physics?

UfishyM stands for Uniformly Angularly Accelerated Motion.

What is the first UfishyM equation on the equation sheet?

the final angular velocity equals the initial angular velocity plus angular acceleration times time.

What is the slope of an angular position vs time graph?

The slope of an angular position vs time graph

How do you calculate arc length in rotational motion?

Arc length equals radius times angular displacement.

What is typical S.I. units for tangential velocity?

meters per second.

What defines tangential acceleration?

Tangential acceleration is the linear acceleration that is tangent to the circular path being traced out by an object.

What is the direction of tangential acceleration when tangential velocity increases?

The tangential acceleration is in the same direction as the tangential velocity.

What is centripetal acceleration?

Centripetal acceleration is directed toward the center of the circular path and results from the change in direction of tangential velocity.

What is the relationship between angular velocity and period?

Period equals 2 pi over angular velocity.

What must angular displacement, angular velocity, and angular acceleration be in for rotational kinematic equations?

They must be in radians.

What does the term 'center seeking' refer to?

It refers to centripetal acceleration, which is the acceleration directed toward the center of the circular path.