5.2 Circular motion Flashcards
1
Q
What is the definition of angular velocity?
A
-Rate of change of angle
2
Q
What is the symbol used for angular velocity?
A
-Omega (w)
3
Q
When an object is travelling Ina circle, what is happening to the direction and velocity?
A
-Direction is constantly changing
-Velocity is also constantly changing
4
Q
What is the definition of centripetal force?
A
Centripetal force is the net force which acts perpendicular to the direction of the velocity, towards the centre of the
circle.
5
Q
Give some applications of centipedal force.
A
-Gravitational fields
-Friction
-Tension in a rope
6
Q
Where does the resultant force in centripetal force act?
A
-towards the centre
