UCM (Uniform circular motion) Flashcards
- It can be described as the
motion of an object in a
circle at a constant speed. - As an object moves in a
circle, it is constantly
changing its direction. - At all instances, the object
is moving tangent to the
circle.
Uniform circular motion
This word means that the speed is constant during said motion
“uniform”
true or false:
the motion of the continuously changes as it moves along the circle
true
True or false:
The direction of the
velocity vector is the
same as the direction of
the object’s motion,
true
for example, you cut the rope of a ball moving in UCM, where does the ball go?
in a line tangent to the circle
True or false:
in UCM, the object is accelerating due to the change in its direction of inwards
true
what do you call the acceleration of an object moving in UCM?
centripetal acceleration
what is the formula of centripetal acceleration?
Ac = v^2 / r
unit:
m/s^2
centripetal acceleration = tangential velocity squared / radius
is responsible for the centripetal acceleration that is directed towards the center of the circle
centripetal force
True or false:
the unit of Fc (centripetal force) is kg m/s^2 or N (newtons)
True
this means “center-seeking”
“centripetal”
true or false:
the centripetal force is directed towards the center of the circular path
true
true or false:
the object is in a constant, non changing motion because it is moving in a specific direction
false
objects continuously change because it dosen’t go in a straight line
