6.5.4.1.3 velocity Flashcards
1
Q
What is velocity
A
the velocity of an object is its speed in a given direction
2
Q
Is velocity a vector or scalar quantity
A
vector
3
Q
An object moving in a circular orbit has a changing velocity, How come?
A
Velocity is a vector quantity, depending on speed and direction. The object in orbit is accelerating, even tough speed remains constant, because its velocity is changing