L1: Circular Motion (General Physics 1)

Quiz 1

Circular Motion

described as a movement if an object while rotating along a circular path.

Circular Motion

can either be uniform or non-uniform.

Uniform Circular Motion

the angular rate rotation and speed will be CONSTANT.

Non-Uniform Circular Motion

the rate of rotation KEEPS ON CHANGING.

Why do we use radians in rotational motion problems?

When dealing with rotational motion from a physics perspective, measuring rotational motion in units known as radians (rads) is much more efficient.

Radian

measures a distance around an arc equal to the length of the arc’s radius.

One radian

the angle θ subtended at the center of the circle by an arc length s equal to the radius R of the circle.

Angular Velocity

it is the rate of change in angular displacement (rad/s).

Frequency of Revolution

Angular Velocity can also be given as the _________ __ __________

Angular Acceleration

It is the rate of change in angular velocity (rad/s²)

Change in Frequency

The angular acceleration can also be found from the _______________

Angular Acceleration

the time rate of change of angular velocity.

Centripetal Force

the force REQUIRED for circular motion.

Centrifugal Force

force that make something flee from the center.