0
Q
How can we convert from degrees into radians?
A
angle in degrees x (2pi/360)
1
Q
Define the radian.
A
The angle in radians is the arc-length divided by the radius of the circle.
2
Q
What makes an object describe a circular path?
A
A force acting perpendicular to it’s direction of motion.
3
Q
What is meant by centripetal acceleration?
A
The acceleration of an object towards the centre of it’s circular path. The rate of velocity is changing even though it’s speed remains constant.
4
Q
What is meant by centripetal force?
A
The force on an object describing a circular path that acts towards the centre of the circle.
