Circular Motion Flashcards
1
Q
How do you convert from degrees to radians?
A
x * π / 180
2
Q
Two equations for angular velocity?
A
ω = 2π / T
ω = 2πf
3
Q
What is a centripetal force?
A
A force that keeps an object moving along a circular path at a constant speed.
4
Q
What direction does a centripetal force act?
A
Perpendicular to the velocity of an object
Towards the centre of the circle
5
Q
Equation for speed in a circle?
A
v = r ω
6
Q
Two equations for centripetal acceleration?
A
a = v2 / r
a = ω2 r
7
Q
How do you derive a = v2 / r ?
A
Check Notion.
8
Q
Two equations for centripetal force?
A
F = m v2 / r
F = m ω2 r
