Flashcards on Circular Motion

Radian

The angle subtended at the center of a circle by an arc equal in length to the radius

How much is 1 Radian relative Degrees?

57.3 degrees

What is Angular velocity (ω)?

The angle θ swept out by the radius in time Δt, calculated as ω = θ/Δt.

Unit: rad s^-1

Define Time period (T)

The length of time for one complete cycle in circular motion.

Define Frequency (f)

The number of cycles per second in circular motion

What equation links frequency and Time period?

f = 1/T

What is Arc length?

The distance traveled by an object in circular motion

Calculated as arc length = rθ.

Define Centripetal acceleration

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

Define Centripetal force (F)

The resultant force acting on a body moving at constant speed in a circle

How is the centripetal Force calculated?

Calculated using Newton's second law, F = ma.