5.2 - Circular Motion Flashcards
1
Q
What is a radian?
A
The angle subtended at the centre of a circle when the arc is equal in length to the radius of the circle
2
Q
What is a period?
A
The time taken in seconds for one complete circular path
3
Q
What is angular velocity?
A
The rate of angular rotation, measured in radians per second
4
Q
What is centripetal acceleration?
A
The acceleration of an object moving with uniform circular motion. It is directed radially inwards towards the centre of the circle, perpendicular to the velocity vector at any instant
5
Q
What is centripetal force?
A
The resultant force on an object, acting towards the centre of the circle, causing it to move in a circular path
