Transcript Uniform Circular Motion

Uniform Circular Motion
Read pages 234 and 235 and
study this figure.
v=v2-v1
a = v/t
Question 5.
If you answered questions 3
and 4 correctly, state so. If
not, write the correct answers.
Study the rest of the slides, along with your
textbook pages 236-239.
Take notes on the same sheet of paper that you
have used to answer questions 1-5. This
completed work will be your entrance ticket to
the lab.
Be prepared to demonstrate your
understanding of the vocabulary and concepts
before you are permitted to do the lab.
Uniform Circular Motion
v- tangential
velocity
a- acceleration
directed toward
the center of the
circle
Uniform Circular Motion
Centripetal acceleration (ac )
“Center-seeking”
acceleration
ac is perpendicular
to the tangential
velocity
Dynamics of Uniform Circular
Motion
What force causes an object to
have centripetal acceleration?
Centripetal force, Fc - net force
necessary to cause centripetal
acceleration.
Dynamics of Uniform
Circular Motion
Centripetal force is
directed toward the
center of the circle.
Centripetal vs. Centrifugal Force
Read pages 238 -239 and
answer the questions:
6) If centripetal means
“center seeking”, what does
centrifugal mean?
7) Does centrifugal force
really exist?Explain.
Centripetal vs. Centrifugal Force
If there was a
centrifugal
force, what
direction would
the ball travel
when the string
broke?
If there was a
centrifugal
force, the ball
would fly
outward