Circular Motion Flashcards
1
Q
What is meant by angular velocity (ω)?
A
The angle swept out by the radius in a specific time
2
Q
Why does an object in circular motion feel a force?
A
› Has constantly changing direction therefore must be accelerating
› The acceleration (called centripetal acceleration) always acts towards the centre
› Due to Newton’s second law (F=ma) it must also feel a centripetal force towards the centre
3
Q
How many radians are there in a full circle?
A
2π
4
Q
What is meant by angular frequency?
A
The angle swept out by the radius per second
